Financial report context:
required to maintain a fhlb stock investment currently equal to the lesser of : a percentage of 0.2% ( 0.2 % ) of total bank assets ; or a dollar cap amount of $ 25 million . additionally , the bank must maintain an activity based stock investment which is currently equal to 4.5% ( 4.5 % ) of the bank 2019s outstanding advances at the time of borrowing . on a quarterly basis the fhlb atlanta evaluates excess activity based stock holdings for its members and makes a determination regarding quarterly redemption of any excess activity based stock positions . the company had an investment in fhlb stock of $ 140.2 million and $ 164.4 million at december 31 , 2011 and 2010 , respectively . the company must also maintain qualified collateral as a percent of its advances , which varies based on the collateral type , and is further adjusted by the outcome of the most recent annual collateral audit and by fhlb 2019s internal ranking of the bank 2019s creditworthiness . these advances are secured by a pool of mortgage loans and mortgage-backed securities . at december 31 , 2011 and 2010 , the company pledged loans with a lendable value of $ 5.0 billion and $ 5.6 billion , respectively , of the one- to four-family and home equity loans as collateral in support of both its advances and unused borrowing lines . during the year ended december 31 , 2009 , the company paid down in advance of maturity $ 1.6 billion of its fhlb advances . the company recorded a loss on the early extinguishment of fhlb advances of $ 50.6 million for the year ended december 31 , 2009 . this loss is recorded in the gains ( losses ) on early extinguishment of debt line item in the consolidated statement of income ( loss ) . the company did not have any similar transactions for the years ended december 31 , 2011 and 2010 . other borrowings 2014etbh raised capital in the past through the formation of trusts , which sell trust preferred securities in the capital markets . the capital securities must be redeemed in whole at the due date , which is generally 30 years after issuance . each trust issued floating rate cumulative preferred securities ( 201ctrust preferred securities 201d ) , at par with a liquidation amount of $ 1000 per capital security . the trusts used the proceeds from the sale of issuances to purchase floating rate junior subordinated debentures ( 201csubordinated debentures 201d ) issued by etbh , which guarantees the trust obligations and contributed proceeds from the sale of its subordinated debentures to e*trade bank in the form of a capital contribution . the most recent issuance of trust preferred securities occurred in 2007 . the face values of outstanding trusts at december 31 , 2011 are shown below ( dollars in thousands ) : trusts face value maturity date annual interest rate .

Financial table:
trusts: etbh capital trust ii; face value: $ 5000; maturity date: 2031; annual interest rate: 10.25% ( 10.25 % )
trusts: etbh capital trust i; face value: 20000; maturity date: 2031; annual interest rate: 3.75% ( 3.75 % ) above 6-month libor
trusts: etbh capital trust v vi viii; face value: 51000; maturity date: 2032; annual interest rate: 3.25%-3.65% ( 3.25%-3.65 % ) above 3-month libor
trusts: etbh capital trust vii ix 2014xii; face value: 65000; maturity date: 2033; annual interest rate: 3.00%-3.30% ( 3.00%-3.30 % ) above 3-month libor
trusts: etbh capital trust xiii 2014xviii xx; face value: 77000; maturity date: 2034; annual interest rate: 2.45%-2.90% ( 2.45%-2.90 % ) above 3-month libor
trusts: etbh capital trust xix xxi xxii; face value: 60000; maturity date: 2035; annual interest rate: 2.20%-2.40% ( 2.20%-2.40 % ) above 3-month libor
trusts: etbh capital trust xxiii 2014xxiv; face value: 45000; maturity date: 2036; annual interest rate: 2.10% ( 2.10 % ) above 3-month libor
trusts: etbh capital trust xxv 2014xxx; face value: 110000; maturity date: 2037; annual interest rate: 1.90%-2.00% ( 1.90%-2.00 % ) above 3-month libor
trusts: total; face value: $ 433000

Additional report context:
as of december 31 , 2011 and 2010 , other borrowings also included $ 2.3 million and $ 19.3 million , respectively , of collateral pledged to the bank by its derivatives counterparties to reduce credit exposure to changes in market value . as of december 31 , 2010 , other borrowings also included $ 0.5 million of overnight and other short-term borrowings in connection with the federal reserve bank 2019s treasury , tax and loan programs . the company pledged $ 0.8 million of securities to secure these borrowings from the federal reserve bank as of december 31 , 2010. .

Question: as of december 31 , 2010 , what was the ratio of collateral pledged to the bank by its derivatives counterparties to overnight and other short-term borrowings
Answer: 4.6