Yield to maturity - wikipedia Yield to maturity Financial markets Public market Exchange Securities Bond market Bond valuation Corporate bond Fixed income Government bond High - yield debt Municipal bond Securitization Stock market Common stock Preferred stock Registered share Stock Stock certificate Stock exchange Other markets Derivatives ( Credit derivative Futures exchange Hybrid security ) Foreign exchange ( Currency Exchange rate ) Commodity Money Real estate Reinsurance Over-the - counter ( off - exchange ) Forwards Options Spot market Swaps Trading Participants Regulation Clearing Related areas Banks and banking Finance corporate personal public The yield to maturity ( YTM ), book yield or redemption yield of a bond or other fixed - interest security, such as gilts, is the ( theoretical ) internal rate of return ( IRR, overall interest rate ) earned by an investor who buys the bond today at the market price, assuming that the bond will be held until maturity, and that all coupon and principal payments will be made on schedule. Yield to maturity is the discount rate at which the sum of all future cash flows from the bond ( coupons and principal ) is equal to the current price of the bond. The YTM is often given in terms of Annual Percentage Rate ( A.P.R. ), but more often market convention is followed. In a number of major markets ( such as gilts ) the convention is to quote annualised yields with semi-annual compounding ( see compound interest ) ; thus, for example, an annual effective yield of 10.25 % would be quoted as 10.00 %, because 1.05 × 1.05 = 1.1025 and 2 × 5 = 10. Contents 1 Main assumptions 2 Coupon rate vs. YTM and parity 3 Variants of yield to maturity 4 Consequences 5 Calculations 5.1 Formula for yield to maturity for zero - coupon bonds 5.1. 1 Example 1 5.1. 2 Example 2 5.2 Coupon - bearing Bonds 5.3 Varying coupon 6 See also 7 References 8 External links Main assumptions The main underlying assumptions used concerning the traditional yield measures are : The bond will be held to maturity. All coupon and principal payments will be made on schedule. The yield to maturity is the single interest rate that equates the present value of a bonds cash flows to its price. A common misconception is that the coupons must be reinvested at the yield to maturity. However, the paper Yield - to - Maturity and the Reinvestment of Coupon Payments says making this assumption is a common mistake in financial literature and coupon reinvestment is not required for YTM formula to hold. And, as Fabozzi states : `` The implication is that the yield to maturity measure tells little about the potential yield that an investment may realize if held to maturity. '' The yield is usually quoted without making any allowance for tax paid by the investor on the return, and is then known as `` gross redemption yield ''. It also does not make any allowance for the dealing costs incurred by the purchaser ( or seller ). Coupon rate vs. YTM and parity If a bond 's coupon rate is less than its YTM, then the bond is selling at a discount. If a bond 's coupon rate is more than its YTM, then the bond is selling at a premium. If a bond 's coupon rate is equal to its YTM, then the bond is selling at par. Variants of yield to maturity As some bonds have different characteristics, there are some variants of YTM : Yield to call ( YTC ) : when a bond is callable ( can be repurchased by the issuer before the maturity ), the market looks also to the Yield to call, which is the same calculation of the YTM, but assumes that the bond will be called, so the cashflow is shortened. Yield to put ( YTP ) : same as yield to call, but when the bond holder has the option to sell the bond back to the issuer at a fixed price on specified date. Yield to worst ( YTW ) : when a bond is callable, puttable, exchangeable, or has other features, the yield to worst is the lowest yield of yield to maturity, yield to call, yield to put, and others. Consequences When the YTM is less than the ( expected ) yield of another investment, one might be tempted to swap the investments. Care should be taken to subtract any transaction costs, or taxes. Calculations Formula for yield to maturity for zero - coupon bonds Yield to maturity ( YTM ) = Face value Present value Time period − 1 ( displaystyle ( \text ( Yield to maturity ( YTM ) ) ) = ( sqrt ( ( \text ( Time period ) ) ) ( dfrac ( \text ( Face value ) ) ( \text ( Present value ) ) ) ) - 1 ) Example 1 Consider a 30 - year zero - coupon bond with a face value of $100. If the bond is priced at an annual YTM of 10 %, it will cost $5.73 today ( the present value of this cash flow, 100 / ( 1.1 ) = 5.73 ). Over the coming 30 years, the price will advance to $100, and the annualized return will be 10 %. What happens in the meantime ? Suppose that over the first 10 years of the holding period, interest rates decline, and the yield - to - maturity on the bond falls to 7 %. With 20 years remaining to maturity, the price of the bond will be 100 / 1.07, or $25.84. Even though the yield - to - maturity for the remaining life of the bond is just 7 %, and the yield - to - maturity bargained for when the bond was purchased was only 10 %, the return earned over the first 10 years is 16.25 %. This can be found by evaluating ( 1 + i ) from the equation ( 1 + i ) = ( 25.882 / 5.7389 ), giving 0.1625. Over the remaining 20 years of the bond, the annual rate earned is not 16.25 %, but rather 7 %. This can be found by evaluating ( 1 + i ) from the equation ( 1 + i ) = 100 / 25.84, giving 1.07. Over the entire 30 year holding period, the original $5.73 invested increased to $100, so 10 % per annum was earned, irrespective of any interest rate changes in between. Example 2 You buy ABCXYZ Company bond which matures in 1 year and has a 5 % interest rate ( coupon ) and has a par value of $100. You pay $90 for the bond. The current yield is 5.56 % ( 5 / 90 ). If you hold the bond until maturity, ABCXYZ Company will pay you $5 as interest and $100 par value for the matured bond. Now for your $90 investment, you get $105, so your yield to maturity is 15 / 90 = 16.67 % ( = ( 105 / 90 ) - 1 ) or ( = ( 105 - 90 ) / 90 ). Assume now that you had to pay $101 for the same bond with a 5 % interest rate. When the coupon is paid, you get $5. But you had to pay an extra $1 when buying the bond compared to the par value, your real gain is $4 for an initial investment of $101. Your yield to maturity is 4 / 101 = 3.96 % If you had paid $105 for the same bond, you would get $5 when the coupon is paid. However you had to compensate for the extra $5 of your initial investment. Your gain is 0 and so is your yield to maturity. Coupon - bearing bonds For bonds with multiple coupons, it is not generally possible to solve for yield in terms of price algebraically. A numerical root - finding technique such as Newton 's method must be employed to approximate the yield which renders the present value of future cash flows equal to the bond price. Varying coupon With varying coupons the general discounting rule should be applied. See also Bond valuation # Present value approach I - spread Dividend yield Bond duration Coupon rate Compound interest Yield to Maturity on Wikinvest References Jump up ^ Definition of ' Yield To Maturity ( YTM ) ' Jump up ^ Formulae for Calculating Gilt Prices from Yields Jump up ^ Fabozzi, Frank. The Handbook of Fixed Income Securities. McGraw - Hill, 2012, p. 746. Jump up ^ Fabozzi, Frank ( 2012 ). The Handbook of Fixed Income Securities. McGraw - Hill. p. 105. Mayle, Jan ( 1993 ), Standard Securities Calculation Methods : Fixed Income Securities Formulas for Price, Yield and Accrued Interest, 1 ( 3rd ed. ), Securities Industry and Financial Markets Association, ISBN 1 - 882936 - 01 - 9. The standard reference for conventions applicable to US securities. External links Yield - to - Maturity and the Reinvestment of Coupon Payments Bond market Bond Debenture Fixed income Types of bonds by issuer Agency bond Corporate bond Senior debt Subordinated debt Distressed debt Emerging market debt Government bond Municipal bond Types of bonds by payout Accrual bond Auction rate security Callable bond Commercial paper Contingent convertible bond Convertible bond Exchangeable bond Extendible bond Fixed rate bond Floating rate note High - yield debt Inflation - indexed bond Inverse floating rate note Perpetual bond Puttable bond Reverse convertible securities Zero - coupon bond Bond valuation Clean price Convexity Coupon Credit spread Current yield Dirty price Duration I - spread Mortgage yield Nominal yield Option - adjusted spread Risk - free bond Weighted - average life Yield curve Yield spread Yield to maturity Z - spread Securitized products Asset - backed security Collateralized debt obligation Collateralized mortgage obligation Commercial mortgage - backed security Mortgage - backed security Bond options Callable bond Convertible bond Embedded option Exchangeable bond Extendible bond Puttable bond Institutions Commercial Mortgage Securities Association ( CMSA ) International Capital Market Association ( ICMA ) Securities Industry and Financial Markets Association ( SIFMA ) Retrieved from `` https://en.wikipedia.org/w/index.php?title=Yield_to_maturity&oldid=824099659 '' Categories : Fixed income analysis Talk Contents About Wikipedia Català Français Italiano עברית Nederlands Polski Русский 中文 Edit links This page was last edited on 5 February 2018, at 09 : 14. 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Question: if the coupon rate is greater than the yield to maturity the bond will
Answer: at a premium