We and our insurance subsidiaries share administrative headquarters with Donegal Mutual in a building in Marietta, Pennsylvania that Donegal Mutual owns. Donegal Mutual charges us and our insurance subsidiaries for an appropriate portion of the building expenses under an inter-company allocation agreement. The Marietta headquarters has approximately 270,000 square feet of office space. Southern owns a facility of approximately 10,000 square feet in Glen Allen, Virginia. Atlantic States owns a facility of approximately 25,500 square feet in Le Mars, Iowa and a facility of approximately 8,800 square feet in Sheboygan Falls, Wisconsin.
Donegal Mutual Insurance Company (“Donegal Mutual”) organized us as an insurance holding company on August 26, 1986. See “Business - History and Organizational Structure” for more information. Our insurance subsidiaries, Atlantic States Insurance Company (“Atlantic States”), Southern Insurance Company of Virginia (“Southern”), The Peninsula Insurance Company and Peninsula Indemnity Company (collectively, “Peninsula”), and Michigan Insurance Company (“MICO”) write personal and commercial lines of property and casualty coverages exclusively through a network of independent insurance agents in certain Mid-Atlantic, Midwest, New England and Southern states. The personal lines products of our insurance subsidiaries consist primarily of homeowners and private passenger automobile policies. The commercial lines products of our insurance subsidiaries consist primarily of commercial automobile, commercial multi-peril and workers’ compensation policies.
In July 2013, our board of directors authorized a share repurchase program pursuant to which we have the authority to purchase up to 500,000 additional shares of our Class A common stock at prices prevailing from time to time in the open market subject to the provisions of the SEC Rule 10b-18 and in privately negotiated transactions. We did not purchase any shares of our Class A common stock under this program during 2019 or 2018. We have purchased a total of 57,658 shares of our Class A common stock under this program from its inception through December 31, 2019.
Our insurance subsidiaries maintain liabilities for the payment of losses and loss expenses with respect to both reported and unreported claims. Our insurance subsidiaries establish these liabilities for the purpose of covering the ultimate costs of settling all losses, including investigation and litigation costs. Our insurance subsidiaries base the amount of their liability for reported losses primarily upon a case-by-case evaluation of the type of risk involved, knowledge of the circumstances surrounding each claim and the insurance policy provisions relating to the type of loss the policyholder incurred. Our insurance subsidiaries determine the amount of their liability for unreported claims and loss expenses on the basis of historical information by line of insurance. Our insurance subsidiaries account for inflation in the reserving function through analysis of costs and trends and reviews of historical reserving results. Our insurance subsidiaries monitor their liabilities closely and recompute them periodically using new information on reported claims and a variety of statistical techniques. Our insurance subsidiaries do not discount their liabilities for losses and loss expenses.
Reserve estimates can change over time because of unexpected changes in assumptions related to our insurance subsidiaries’ external environment and, to a lesser extent, assumptions related to our insurance subsidiaries’ internal operations. For example, our insurance subsidiaries have experienced an increase in claims severity and a lengthening of the claim settlement periods on bodily injury claims during the past several years. These trend changes give rise to greater uncertainty as to the pattern of future loss settlements on bodily injury claims. Related uncertainties regarding future trends include the rate of plaintiff attorney involvement in claims and the cost of medical technologies and procedures. Assumptions related to our insurance subsidiaries’ external environment include the absence of significant changes in tort law and the legal environment that increase liability exposure, consistency in judicial interpretations of insurance coverage and policy provisions and the rate of loss cost inflation. Internal assumptions include consistency in the recording of premium and loss statistics, consistency in the recording of claims, payment and case reserving methodology, accurate measurement of the impact of rate changes and changes in policy provisions, consistency in the quality and characteristics of business written within a given line of business and consistency in reinsurance coverage and collectability of reinsured losses, among other items. To the extent our insurance subsidiaries determine that underlying factors impacting their assumptions have changed, our insurance subsidiaries make adjustments in their reserves that they consider appropriate for such changes. Accordingly, our insurance subsidiaries’ ultimate liability for unpaid losses and loss expenses will likely differ from the amount recorded at December 31, 2019. For every 1% change in our insurance subsidiaries’ loss and loss expense reserves, net of reinsurance recoverable, the effect on our pre-tax results of operations would be approximately $5.1 million.
Our insurance subsidiaries recognized a (decrease) increase in their liability for losses and loss expenses of prior years of ($12.9 million), $35.6 million and $6.6 million in 2019, 2018 and 2017, respectively. Our insurance subsidiaries made no significant changes in their reserving philosophy or claims management personnel, and they have made no significant offsetting changes in estimates that increased or decreased their loss and loss expense reserves in those years. The 2019 development
represented 2.7% of the December 31, 2018 net carried reserves and resulted primarily from lower-than-expected severity in the workers’ compensation line of business, partially offset by higher-than-expected severity in the commercial automobile and commercial multi-peril lines of business, for accident years prior to 2019. The majority of the 2019 development related to decreases in the liability for losses and loss expenses of prior years for Atlantic States and Michigan. The 2018 development represented 9.3% of the December 31, 2017 net carried reserves and resulted primarily from higher-than-expected severity in the commercial multi-peril, personal automobile and commercial automobile lines of business, offset by lower-than-expected severity in the workers’ compensation line of business, for accident years prior to 2018. The majority of the 2018 development related to increases in the liability for losses and loss expenses of prior years for Atlantic States and Southern. During 2018, our insurance subsidiaries received new information on previously-reported commercial automobile and personal automobile claims that led our insurance subsidiaries to conclude that their prior actuarial assumptions did not fully anticipate recent changes in severity and reporting trends. Our insurance subsidiaries have encountered increasing difficulties in projecting the ultimate severity of automobile losses over recent accident years, which our insurance subsidiaries attribute to worsening litigation trends and an increased delay in the reporting to our insurance subsidiaries of information with respect to the severity of claims. As a result, our insurance subsidiaries’ actuaries increased their projections of the ultimate cost of our insurance subsidiaries’ prior-year personal automobile and commercial automobile losses, and our insurance subsidiaries added $17.7 million to their reserves for personal automobile and $20.8 million to their reserves for commercial automobile for accident years prior to 2018. The 2017 development represented 1.9% of the December 31, 2016 net carried reserves and resulted primarily from higher-than-expected severity in the commercial multi-peril, personal automobile and commercial automobile lines of business, offset by lower-than-expected severity in the workers’ compensation line of business, for accident years prior to 2017. The majority of the 2017 development related to increases in the liability for losses and loss expenses of prior years for Atlantic States and Peninsula.
subsidiaries consistently apply actuarial loss reserving techniques and assumptions, which rely on historical information as adjusted to reflect current conditions, including consideration of recent case reserve activity. Our insurance subsidiaries use the most-likely number their actuaries determine. For the year ended December 31, 2019, the actuaries developed a range from a low of $468.8 million to a high of $548.1 million and with a most-likely number of $506.9 million. The actuaries’ range of estimates for commercial lines in 2019 was $320.8 million to $375.0 million, and the actuaries selected the most-likely number of $346.8 million. The actuaries’ range of estimates for personal lines in 2019 was $148.0 million to $173.1 million, and the actuaries selected the most-likely number of $160.1 million. For the year ended December 31, 2018, the actuaries developed a range from a low of $436.1 million to a high of $518.3 million and with a most-likely number of $475.4 million. The actuaries’ range of estimates for commercial lines in 2018 was $282.0 million to $335.0 million, and the actuaries selected the most-likely number of $307.4 million. The actuaries’ range of estimates for personal lines in 2018 was $154.0 million to $183.2 million, and the actuaries selected the most-likely number of $168.0 million.
We define net premiums written as the amount of full-term premiums our insurance subsidiaries record for policies effective within a given period less premiums our insurance subsidiaries cede to reinsurers. Net premiums earned is the most comparable GAAP financial measure to net premiums written. Net premiums earned represent the sum of the amount of net premiums written and the change in net unearned premiums during a given period. Our insurance subsidiaries earn premiums and recognize them as revenue over the terms of their policies, which are one year or less in duration. Therefore, increases or decreases in net premiums earned generally reflect increases or decreases in net premiums written in the preceding 12-month period compared to the comparable period one year earlier.
The decrease in the change in net unearned premiums for 2019 and 2018 compared to 2017 reflects lower growth in net premiums written during 2019 and 2018, which we attribute primarily to net attrition in our personal lines segment that resulted from increased pricing on renewal policies and underwriting measures our insurance subsidiaries implemented to slow new policy growth.
Our insurance subsidiaries’ 2019 net premiums written increased 1.2% to $752.6 million, compared to $744.0 million for 2018. We attribute the increase primarily to the impact of premium rate increases and an increase in the writing of new accounts in commercial lines of business. Commercial lines net premiums written increased $47.8 million, or 13.4%, for 2019 compared to 2018. Personal lines net premiums written decreased $39.2 million, or 10.1%, for 2019 compared to 2018. We attribute the decrease in personal lines primarily to net attrition as a result of underwriting measures our insurance subsidiaries have implemented to slow new policy growth and increased pricing on renewal policies, as well as the previously announced non-renewal of unprofitable personal lines business in seven states that began in February 2019, partially offset by premium rate increases our insurance subsidiaries have implemented over the past five quarters and lower reinsurance premiums.
Our insurance subsidiaries’ loss ratio, which is the ratio of incurred losses and loss expenses to premiums earned, was 67.0% in 2019, compared to 77.8% in 2018. Our insurance subsidiaries’ commercial lines loss ratio decreased to 63.0% in 2019, compared to 72.9% in 2018. This decrease resulted primarily from the commercial automobile loss ratio decreasing to 86.2% in 2019, compared to 101.9% in 2018, and the commercial multi-peril loss ratio decreasing to 63.1% in 2019, compared to 67.0% in 2018. The personal lines loss ratio was 71.1% in 2019, compared to 81.8% in 2018. Our insurance subsidiaries experienced favorable loss reserve development of approximately $12.9 million, or 1.7 percentage points of the loss ratio, during 2019 in their reserves for prior accident years, compared to unfavorable loss reserve development of approximately $35.6 million, or 4.8 percentage points of the loss ratio, during 2018. The favorable loss reserve development in 2019 resulted primarily from lower-than-expected severity in the workers’ compensation line of business, partially offset by higher-than-expected severity in the commercial automobile and commercial multi-peril lines of business, for accident years prior to 2019. Weather-related losses of $46.1 million, or 6.1 percentage points of the loss ratio, for 2019 decreased from $65.0 million, or 8.8 percentage points of the loss ratio, for 2018.
Our insurance subsidiaries’ combined ratio was 99.5% and 110.1% in 2019 and 2018, respectively. The combined ratio represents the sum of the loss ratio, the expense ratio and the dividend ratio, which is the ratio of workers’ compensation policy dividends incurred to premiums earned. We attribute the decrease in our combined ratio primarily to the decrease in our loss ratio.
Our net income in 2019 was $47.2 million, or $1.67 per share of Class A common stock on a diluted basis and $1.51 per share of Class B common stock, compared to a net loss of $32.8 million, or $1.18 per share of Class A common stock and $1.09 per share of Class B common stock, in 2018. We had 23.2 million and 22.8 million Class A shares outstanding at December 31, 2019 and 2018, respectively. We had 5.6 million Class B shares outstanding for both periods. There are no outstanding securities that dilute our shares of Class B common stock.
Our net investment (losses) gains in 2018 and 2017 were ($4.8 million) and $5.7 million, respectively. The net investment losses for 2018 were primarily related to a decrease in the market value of the equity securities we held at December 31, 2018. We adopted new accounting guidance effective January 1, 2018 that requires us to measure equity investments at fair value and recognize changes in fair value in our results of operations. The net investment gains for 2017 resulted primarily from strategic sales of equity securities within our investment portfolio and unrealized gains within a limited partnership that invests in equity securities. We did not recognize any impairment losses during 2018 or 2017.
Our equity in the earnings of DFSC in 2018 and 2017 was $2.7 million and $1.6 million, respectively. We attribute the increase in DFSC’s earnings primarily to higher net interest income related to loan portfolio growth that DFSC achieved during 2018.
Our insurance subsidiaries’ expense ratio, which is the ratio of policy acquisition and other underwriting expenses to premiums earned, was 31.6% in 2018, compared to 32.9% in 2017. We attribute the decrease to lower underwriting-based incentive compensation in 2018.
We have historically generated sufficient net positive cash flow from our operations to fund our commitments and build our investment portfolio, thereby increasing future investment returns. The pooling agreement with Donegal Mutual historically has been cash flow positive because of the profitability of the underwriting pool. Because we settle the pool monthly, our cash flows are substantially similar to the cash flows that would result from the underwriting of direct business. We maintain a high degree of liquidity in our investment portfolio in the form of marketable fixed maturities, equity securities and short-term investments. We structure our fixed-maturity investment portfolio following a “laddering” approach so that projected cash flows from investment income and principal maturities are evenly distributed from a timing perspective. This laddering approach provides an additional measure of liquidity to meet our obligations and the obligations of our insurance subsidiaries should an unexpected variation occur in the future. Net cash flows provided by operating activities in 2019, 2018 and 2017 were $76.4 million, $63.8 million and $81.0 million, respectively.
In March 2019, we terminated our previous credit agreement with Manufacturers and Traders Trust Company (“M&T”) and entered into a new credit agreement with M&T. The new credit agreement relates to a $30.0 million unsecured revolving line of credit. The line of credit expires in July 2020. At December 31, 2019, we had no outstanding borrowings from M&T and had the ability to borrow up to $30.0 million at interest rates equal to M&T’s current prime rate or the then-current LIBOR rate plus 2.25%. We pay a fee of 0.15% per annum on the loan commitment amount regardless of usage. The credit agreement requires our compliance with certain covenants. These covenants include minimum levels of our net worth, leverage ratio, statutory surplus and the A.M. Best ratings of our insurance subsidiaries. In addition, Atlantic States has guaranteed our payment obligations under the new credit agreement. We complied with all of the requirements of the credit agreement, including all covenants, as of the filing date of this Form 10-K Report.
The cash dividends we declared to our stockholders totaled $16.2 million, $15.8 million and $15.0 million in 2019, 2018 and 2017, respectively. There are no regulatory restrictions on our payment of dividends to our stockholders, although there are restrictions under applicable state laws on the payment of dividends from our insurance subsidiaries to us. Our insurance subsidiaries are required by law to maintain certain minimum surplus on a statutory basis and are subject to regulations under which their payment of dividends from statutory surplus is restricted and may require prior approval of their domiciliary insurance regulatory authorities. Our insurance subsidiaries are also subject to risk-based capital (“RBC”) requirements. The amount of statutory capital and surplus necessary for our insurance subsidiaries to satisfy regulatory requirements, including the RBC requirements, was not significant in relation to our insurance subsidiaries’ statutory capital and surplus at December 31, 2019. Amounts available for distribution to us as ordinary dividends from our insurance subsidiaries without prior approval of insurance regulatory authorities in 2020 are $25.9 million from Atlantic States, $5.4 million from Southern, $2.0 million from Peninsula and $6.6 million from MICO, or a total of approximately $39.9 million.
At December 31, 2019 and 2018, our investment portfolio of primarily investment-grade bonds, common stock, short-term investments and cash totaled $1.2 billion and $1.1 billion, respectively, representing 60.3% and 59.1%, respectively, of our total assets. See “Business - Investments” for more information.
The carrying value of our fixed maturity investments represented 93.7% and 90.2% of our total invested assets at December 31, 2019 and 2018, respectively.
Our fixed maturity investments consisted of high-quality marketable bonds, of which 99.8% were rated at investment-grade levels at December 31, 2019 and 2018.
Donegal Mutual Insurance Company (“Donegal Mutual”) organized us as an insurance holding company on August 26, 1986. Our insurance subsidiaries, Atlantic States Insurance Company (“Atlantic States”), Southern Insurance Company of Virginia (“Southern”), the Peninsula Insurance Group (“Peninsula”), which consists of Peninsula Indemnity Company and The Peninsula Insurance Company and Michigan Insurance Company (“MICO”), write personal and commercial lines of property and casualty coverages exclusively through a network of independent insurance agents in certain Mid-Atlantic, Midwestern, New England and Southern states. Until March 8, 2019, we also owned 48.2% of the outstanding stock of Donegal Financial Services Corporation (“DFSC”), a grandfathered unitary savings and loan holding company that owned Union Community Bank (“UCB”), a state savings bank. Donegal Mutual owned the remaining 51.8% of the outstanding stock of DFSC.
Atlantic States, our largest subsidiary, participates in a pooling agreement with Donegal Mutual. Under the pooling agreement, the two companies pool their insurance business and each company receives an allocated percentage of the pooled business. Atlantic States has an 80% share of the results of the pooled business, and Donegal Mutual has a 20% share of the results of the pooled business.
We and Donegal Mutual sold DFSC to Northwest Bancshares, Inc. (“Northwest”) on March 8, 2019, resulting in proceeds valued at approximately $85.8 million in a combination of cash and Northwest common stock. Immediately prior to the closing of the merger, DFSC paid a dividend of approximately $29.2 million to us and Donegal Mutual. As the owner of 48.2% of DFSC’s common stock, we received a dividend payment from DFSC of approximately $14.1 million and consideration from Northwest that included a combination of cash in the amount of $20.5 million and Northwest common stock with a fair value at the closing date of $20.9 million. We recorded a gain of $12.7 million from the sale of DFSC in our results of operations for the first quarter of 2019. We sold the Northwest common stock that we received as part of the consideration during 2019. This transaction represented the culmination of a banking strategy that began with the formation of DFSC in 2000.
Effective December 1, 2019, our insurance subsidiaries Le Mars Insurance Company (“Le Mars”) and Sheboygan Falls Insurance Company (“Sheboygan Falls”) merged with and into Atlantic States (the “Mergers”). As a result of the Mergers, the separate corporate existences of Le Mars and Sheboygan Falls ceased and Atlantic States continued as the surviving insurance company. Atlantic States will place the business of Le Mars and Sheboygan Falls, as their policies renew subsequent to the effective date of the Mergers, into the underwriting pool.
We have made certain reclassifications in our prior period financial statements to conform to the current year presentation.
impairment loss in our results of operations. If we do not intend to sell the debt security, we determine whether it is more likely than not that we will be required to sell the debt security prior to recovery. If we determine it is more likely than not that we will be required to sell the debt security prior to recovery, we recognize an impairment loss in our results of operations. If we determine it is more likely than not that we will not be required to sell the debt security prior to recovery, we then evaluate whether a credit loss has occurred. We determine whether a credit loss has occurred by comparing the amortized cost of the debt security to the present value of the cash flows we expect to collect. If we expect a cash flow shortfall, we consider that a credit loss has occurred. If we determine that a credit loss has occurred, we consider the impairment to be other than temporary. We then recognize the amount of the impairment loss related to the credit loss in our results of operations, and we recognize the remaining portion of the impairment loss in our other comprehensive income, net of applicable taxes. In addition, we may write down securities in an unrealized loss position based on a number of other factors, including when the fair value of an investment is significantly below its cost, when the financial condition of the issuer of a security has deteriorated, the occurrence of industry, company or geographic events that have negatively impacted the value of a security and rating agency downgrades.
Investments - We present our investments in available-for-sale fixed maturity and equity securities at estimated fair value. The estimated fair value of a security may differ from the amount that we could realize if we sold the security in a forced transaction. In addition, the valuation of fixed maturity investments is more subjective when markets are less liquid, increasing the potential that the estimated fair value does not reflect the price at which an actual transaction would occur. We utilize nationally recognized independent pricing services to estimate fair values for our fixed maturity and equity investments. We generally obtain two prices per security. The pricing services utilize market quotations for fixed maturity and equity securities that have quoted prices in active markets. For fixed maturity securities that generally do not trade on a daily basis, the pricing services prepare estimates of fair value measurements based predominantly on observable market inputs. The pricing services do not use broker quotes in determining the fair values of our investments. Our investment personnel review the estimates of fair value the pricing services provide to determine if the estimates we obtain are representative of fair values based upon the general knowledge of our investment personnel of the market, their research findings related to unusual fluctuations in value and their comparison of such values to execution prices for similar securities. Our investment personnel monitor the market and are familiar with current trading ranges for similar securities and the pricing of specific investments. Our investment personnel review all pricing estimates that we receive from the pricing services against their expectations with respect to pricing based on fair market curves, security ratings, coupon rates, security type and recent trading activity. Our investment personnel review documentation with respect to the pricing services’ pricing methodology that they obtain periodically to determine if the primary pricing sources, market inputs and pricing frequency for various security types are reasonable. We refer to Note 5 - Fair Value Measurements for more information regarding our methods and assumptions in estimating fair values.
Liabilities for losses and loss expenses are estimates at a given point in time of the amounts an insurer expects to pay with respect to incurred policyholder claims based on facts and circumstances the insurer knows at that point in time. At the time of establishing its estimates, an insurer recognizes that its ultimate liability for losses and loss expenses will exceed or be less than such estimates. Our insurance subsidiaries base their estimates of liabilities for losses and loss expenses on assumptions as to future loss trends, expected claims severity, judicial theories of liability and other factors. However, during the loss adjustment period, our insurance subsidiaries may learn additional facts regarding individual claims, and, consequently, it often becomes necessary for our insurance subsidiaries to refine and adjust their estimates for these liabilities. We reflect any adjustments to the liabilities for losses and loss expenses of our insurance subsidiaries in our consolidated results of operations in the period in which our insurance subsidiaries make adjustments to their estimates.
Reserve estimates can change over time because of unexpected changes in assumptions related to our insurance subsidiaries’ external environment and, to a lesser extent, assumptions related to our insurance subsidiaries’ internal operations. For example, our insurance subsidiaries have experienced an increase in claims severity and a lengthening of the claim settlement periods on bodily injury claims during the past several years. These trend changes give rise to greater uncertainty as to the pattern of future loss settlements on bodily injury claims. Related uncertainties regarding future trends include the rate of plaintiff attorney involvement in claims and the cost of medical technologies and procedures. Assumptions related to our insurance subsidiaries’ external environment include the absence of significant changes in tort law and the legal environment that increase liability exposure, consistency in judicial interpretations of insurance coverage and policy provisions and the rate of loss cost inflation. Internal assumptions include consistency in the recording of premium and loss statistics, consistency in the recording of claims, payment and case reserving methodology, accurate measurement of the impact of rate changes and changes in policy provisions, consistency in the quality and characteristics of business written within a given line of business and consistency in reinsurance coverage and collectability of reinsured losses, among other items. To the extent our insurance subsidiaries determine that underlying factors impacting their assumptions have changed, our insurance subsidiaries make adjustments in their reserves that they consider appropriate for such changes. Accordingly, our insurance subsidiaries’ ultimate liability for unpaid losses and loss expenses will likely differ from the amount recorded.
Our insurance subsidiaries provide property and liability insurance coverages through independent insurance agencies located throughout their operating areas. Our insurance subsidiaries bill the majority of this business directly to their policyholders, although our insurance subsidiaries bill a portion of their commercial business through their agents, to whom they extend credit in the normal course of business.
Our insurance subsidiaries rely upon reinsurance agreements to limit their maximum net loss from large single risks or risks in concentrated areas and to increase their capacity to write insurance. Reinsurance does not relieve our insurance subsidiaries from liability to their respective policyholders. To the extent that a reinsurer cannot pay losses for which it is liable under the terms of a reinsurance agreement with one or more of our insurance subsidiaries, our insurance subsidiaries retain continued liability for such losses. However, in an effort to reduce the risk of non-payment, our insurance subsidiaries require all of their reinsurers to have an A.M. Best rating of A- or better or, with respect to foreign reinsurers, to have a financial condition that, in the opinion of our management, is equivalent to a company with an A.M. Best rating of A- or better. We refer to Note 10 - Reinsurance for more information regarding the reinsurance agreements of our insurance subsidiaries.
We have two classes of common stock, which we refer to as Class A common stock and Class B common stock. Our Class A common stock is entitled to the declaration and payment of cash dividends that are at least 10% higher than those we declare and pay on our Class B common stock. Accordingly, we use the two-class method for the computation of earnings per
common share. The two-class method is an earnings allocation formula that determines earnings per share separately for each class of common stock based on dividends declared and an allocation of remaining undistributed earnings using a participation percentage that reflects the dividend rights of each class.
Atlantic States, our largest insurance subsidiary, and Donegal Mutual have a pooling agreement under which both companies contribute substantially all of their direct written business to the pool and receive an allocated percentage of the pooled underwriting results, excluding certain reinsurance Donegal Mutual assumes from our insurance subsidiaries. In addition, Donegal Mutual has a 100% quota-share reinsurance agreement with Southern Mutual Insurance Company, or Southern Mutual, and Donegal Mutual places its assumed business from Southern Mutual into the underwriting pool. Atlantic States has an 80% share of the results of the pool, and Donegal Mutual has a 20% share of the results of the pool. The intent of the pooling agreement is to produce more uniform and stable underwriting results from year to year for each pool participant than they would experience individually and to spread the risk of loss between the participants based on each participant’s relative amount of surplus and relative access to capital. Each participant in the pool has at its disposal the capacity of the entire pool, rather than being limited to policy exposures of a size commensurate with its own capital and surplus.
Donegal Mutual and MICO have a quota-share reinsurance agreement under which Donegal Mutual assumes 25% of the premiums and losses related to the business of MICO. Donegal Mutual and Peninsula have a quota-share reinsurance agreement under which Donegal Mutual assumes 100% of the premiums and losses related to the workers’ compensation product line of Peninsula in certain states. Donegal Mutual places its assumed business from MICO and Peninsula into the underwriting pool.
combination of these subsidiaries, up to the amount Donegal Mutual and our insurance subsidiaries retained under catastrophe reinsurance agreements with unaffiliated reinsurers. The set retention was $2,000,000, $1,500,000 and $750,000 for Atlantic States, Southern and Le Mars, respectively, for 2017. Through December 31, 2018, Donegal Mutual and Southern had an excess of loss reinsurance agreement in which Donegal Mutual assumed up to $500,000 of Southern’s losses in excess of $500,000.
Donegal Mutual provides facilities, management and other services to us and our insurance subsidiaries. Donegal Mutual allocates certain related expenses to Atlantic States in relation to the relative participation of Atlantic States and Donegal Mutual in the pooling agreement. Our insurance subsidiaries other than Atlantic States reimburse Donegal Mutual for their personnel costs and bear their proportionate share of information services costs based on their percentage of the total written premiums of the Donegal Insurance Group. Charges for these services totaled $134,143,158, $126,153,511 and $124,999,770 for 2019, 2018 and 2017, respectively.
We lease office equipment with terms ranging from 3 to 10 years to Donegal Mutual under a 10-year lease agreement dated January 1, 2011.
The amortized cost and estimated fair values of our fixed maturities at December 31, 2019 and 2018 are as follows:
At December 31, 2018, our holdings of obligations of states and political subdivisions included general obligation bonds with an aggregate fair value of $157.7 million and an amortized cost of $152.2 million. Our holdings also included special revenue bonds with an aggregate fair value of $84.3 million and an amortized cost of $80.9 million. With respect to both categories of bonds, we held no securities of any issuer that comprised more than 10% of that category at December 31, 2018. Education bonds and water and sewer utility bonds represented 49% and 29%, respectively, of our total investments in special revenue bonds based on their carrying values at December 31, 2018. Many of the issuers of the special revenue bonds we held at December 31, 2018 have the authority to impose ad valorem taxes. In that respect, many of the special revenue bonds we held are similar to general obligation bonds.
We have segregated within accumulated other comprehensive income the net unrealized losses of $15.1 million arising prior to the November 30, 2013 reclassification date for fixed maturities reclassified from available for sale to held to maturity. We will amortize this balance over the remaining life of the related securities as an adjustment of yield in a manner consistent with the accretion of discount on the same fixed maturities. During 2019, we recorded amortization of $1.2 million in other comprehensive income. At December 31, 2019 and 2018, net unrealized losses of $7.5 million and $8.6 million, respectively, remained within accumulated other comprehensive loss.
We did not recognize any impairment losses in 2019, 2018 or 2017. We had no sales or transfers from our held to maturity portfolio in 2019, 2018 or 2017. We had no derivative instruments or hedging activities during 2019, 2018 or 2017.
We present our investments in available-for-sale fixed maturity and equity securities at estimated fair value. The estimated fair value of a security may differ from the amount that we could realize if we sold the security in a forced transaction. In
We evaluate our assets and liabilities on a regular basis to determine the appropriate level at which to classify them for each reporting period. Based on our review of the methodology and summary of inputs the pricing services use, we have concluded that our Level 1 and Level 2 investments were classified properly at December 31, 2019 and 2018.
Our insurance subsidiaries recognized a (decrease) increase in their liability for losses and loss expenses of prior years of ($12.9 million), $35.6 million and $6.6 million in 2019, 2018 and 2017, respectively. Our insurance subsidiaries made no significant changes in their reserving philosophy or claims management personnel, and they have made no significant offsetting changes in estimates that increased or decreased their loss and loss expense reserves in those years. The 2019 development represented 2.7% of the December 31, 2018 net carried reserves and resulted primarily from lower-than-expected severity in the workers’ compensation line of business, partially offset by higher-than-expected severity in the commercial automobile and commercial multi-peril lines of business, for accident years prior to 2019. The majority of the 2019 development related to decreases in the liability for losses and loss expenses of prior years for Atlantic States and MICO. The 2018 development represented 9.3% of the December 31, 2017 net carried reserves and resulted primarily from higher-than-expected severity in the commercial multi-peril, personal automobile and commercial automobile lines of business, offset by lower-than-expected severity in the workers’ compensation line of business, for accident years prior to 2018. The majority of the 2018 development related to increases in the liability for losses and loss expenses of prior years for Atlantic States and Southern. During 2018, our insurance subsidiaries received new information on previously-reported commercial automobile and personal automobile claims that led our insurance subsidiaries to conclude that their prior actuarial assumptions did not fully anticipate recent changes in severity and reporting trends. Our insurance subsidiaries have encountered increasing difficulties in projecting the ultimate severity of automobile losses over recent accident years, which our insurance subsidiaries attribute to worsening litigation trends and an increased delay in the reporting to our insurance subsidiaries of information with respect to the severity of claims. As a result, our insurance subsidiaries’ actuaries increased their projections of the ultimate cost of our insurance subsidiaries’ prior-year personal automobile and commercial automobile losses, and our insurance subsidiaries added $17.7 million to their reserves for personal automobile and $20.8 million to their reserves for commercial automobile for accident years prior to 2018. The 2017 development represented 1.9% of the December 31, 2016 net carried reserves and resulted primarily from higher-than-expected severity in the commercial multi-peril, personal automobile and commercial automobile lines of business, offset by lower-than-expected severity in the workers’ compensation line of business, for accident years prior to 2017. The majority of the 2017 development related to increases in the liability for losses and loss expenses of prior years for Atlantic States and Peninsula.
Short-duration contracts are contracts for which our insurance subsidiaries receive premiums that they recognize as revenue over the period of the contract in proportion to the amount of insurance protection our insurance subsidiaries provide. Our insurance subsidiaries consider the policies they issue to be short-duration contracts. We consider our insurance subsidiaries’ material lines of business to be personal automobile, homeowners, commercial automobile, commercial multi-peril and workers’ compensation.
The following table presents supplementary information about average historical claims duration as of December 31, 2019:
In March 2019, we terminated our previous credit agreement with Manufacturers and Traders Trust Company (“M&T”) and entered into a new credit agreement with M&T. The new credit agreement relates to a $30.0 million unsecured revolving line of credit. The line of credit expires in July 2020. At December 31, 2019, we had no outstanding borrowings from M&T and had the ability to borrow up to $30.0 million at interest rates equal to M&T’s current prime rate or the then-current LIBOR rate plus 2.25%. We pay a fee of 0.15% per annum on the loan commitment amount regardless of usage. The credit agreement requires our compliance with certain covenants. These covenants include minimum levels of our net worth, leverage ratio, statutory surplus and the A.M. Best ratings of our insurance subsidiaries. In addition, Atlantic States has guaranteed our payment obligations under the new credit agreement. We complied with all of the requirements of the new credit agreement during 2019.
Atlantic States is a member of the Federal Home Loan Bank (“FHLB”) of Pittsburgh. Through its membership, Atlantic States has the ability to issue debt to the FHLB of Pittsburgh in exchange for cash advances. In August 2019, Atlantic States exchanged a variable-rate cash advance of $35.0 million that was due in March 2020 for a fixed-rate cash advance of $35.0 million that was outstanding at December 31, 2019. Atlantic States incurred a penalty of $176,000 related to the early termination of its previous cash advance. The new cash advance carries a fixed interest rate of 1.74% and is due in August 2024. The table below presents the amount of FHLB of Pittsburgh stock Atlantic States purchased, collateral pledged and assets related to Atlantic States’ membership in the FHLB of Pittsburgh at December 31, 2019.
MICO is a member of the FHLB of Indianapolis. During the second quarter of 2018, MICO terminated its line of credit with the FHLB of Indianapolis.
excess of loss reinsurance, under which the losses of Donegal Mutual and our insurance subsidiaries were automatically reinsured, through a series of contracts, over a set retention of $1.0 million for property losses and a retention of $2.0 million for casualty losses (including workers’ compensation losses); and
catastrophe reinsurance, under which Donegal Mutual and our insurance subsidiaries recovered, through a series of reinsurance agreements, 100% of an accumulation of many losses resulting from a single event, including natural disasters, over a set retention of $10.0 million and after exceeding an annual aggregate deductible of $1.2 million up to aggregate losses of $190.0 million per occurrence.
In addition to the pooling agreement and third-party reinsurance, our insurance subsidiaries had a catastrophe reinsurance agreement with Donegal Mutual, under which each of our insurance subsidiaries recovered 100% of an accumulation of multiple losses resulting from a single event, including natural disasters, over a set retention of $2.0 million up to aggregate losses of $8.0 million per occurrence. The agreement also provided additional coverage for an accumulation of losses from a single event including a combination of our insurance subsidiaries over a combined retention of $5.0 million.
The following amounts represent total ceded reinsurance transactions with both affiliated and unaffiliated reinsurers during 2019, 2018 and 2017:
The following amounts represent the effect of reinsurance on premiums written for 2019, 2018 and 2017:
On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (“ the TCJA”) was signed into law. The TCJA contains significant changes to corporate taxation, including the reduction of the corporate income tax rate to 21%, the acceleration of expensing for certain business assets, the one-time transition tax related to the transition of U.S. international tax from a worldwide tax system to a territorial tax system, the repeal of the domestic production deduction, additional limitations on the deductibility of interest expense, the repeal of the corporate alternative minimum tax and expanded limitations on the deductibility of executive compensation.
Our provision for income tax expense (benefit) for 2019, 2018 and 2017 consisted of the following:
Our effective tax rate is different from the amount computed at the statutory federal rate of 21% for 2019 and 2018 and 35% for 2017. The reasons for such difference and the related tax effects are as follows:
The tax effects of temporary differences that give rise to significant portions of our deferred tax assets and deferred tax liabilities at December 31, 2019 and 2018 are as follows:
On July 18, 2013, our board of directors authorized a share repurchase program pursuant to which we have the authority to purchase up to 500,000 additional shares of our Class A common stock at prices prevailing from time to time in the open market subject to the provisions of the SEC Rule 10b-18 and in privately negotiated transactions. We did not purchase any shares of our Class A common stock under this program during 2019, 2018 or 2017. We have purchased a total of 57,658 shares of our Class A common stock under this program from its inception through December 31, 2019.
The weighted-average grant date fair value of options we granted during 2019 was $1.15. We calculated this fair value based upon a risk-free interest rate of 1.64%, an expected life of three years, an expected volatility of 17% and an expected dividend yield of 4%.
The weighted-average grant date fair value of options we granted during 2017 was $1.81. We calculated this fair value based upon a risk-free interest rate of 2.01%, an expected life of three years, an expected volatility of 19% and an expected dividend yield of 3%.
We charged compensation expense for our stock compensation plans against income before income taxes of $1.4 million, $1.7 million and $2.0 million for the years ended December 31, 2019, 2018 and 2017, respectively, with a corresponding income tax benefit of $288,901, $354,412 and $692,164. At December 31, 2019 and 2018, our total unrecognized compensation cost related to non-vested share-based compensation granted under our stock compensation plans was $2.0 million and $2.5 million, respectively. We expect to recognize this cost over a weighted average period of 1.9 years.
Shares available for future option grants at December 31, 2019 totaled 4.0 million shares under all plans.
The following table summarizes information about stock options outstanding at December 31, 2019:
On January 1, 2020, we issued 20,424 shares at a price of $12.28 per share under this plan.
surplus at December 31, 2019 exceeded the amount of statutory capital and surplus necessary to satisfy regulatory requirements, including the RBC requirements, by a significant margin. Amounts available for distribution to us as dividends from our insurance subsidiaries without prior approval of insurance regulatory authorities in 2020 are $25.9 million from Atlantic States, $5.4 million from Southern, $2.0 million from Peninsula and $6.6 million from MICO, or a total of approximately $39.9 million.
During 2019, we did not include options to purchase 5,531,561 shares of our Class A common stock in the computation of diluted earnings per share because the exercise price of the options was greater than the average market price of our Class A common stock.
We have three reportable segments, which consist of our investment function, our commercial lines of insurance and our personal lines of insurance. Using independent agents, our insurance subsidiaries market commercial lines of insurance to small and medium-sized businesses and personal lines of insurance to individuals.
We evaluate the performance of the commercial lines and personal lines primarily based upon our insurance subsidiaries’ underwriting results as determined under SAP for our total business.
Our insurance subsidiaries’ liabilities for guaranty fund and other insurance-related assessments were $1.6 million and $1.9 million at December 31, 2019 and 2018, respectively. These liabilities included $519,462 and $583,361 related to surcharges collected by our insurance subsidiaries on behalf of regulatory authorities for 2019 and 2018, respectively.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated March 6, 2020 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.
As discussed in Note 2 to the consolidated financial statements, the Company changed its method of accounting for changes in fair value of equity securities in 2018 due to the adoption of Accounting Standards Update 2016-01, Recognition and Measurement of Financial Assets and Liabilities.