Sec. 5. (a) The total loans and extensions of credit by a savings bank to a person outstanding at one (1) time and not fully secured, as determined in a manner consistent with subsection (b), by collateral having a market value at least equal to the amount of the loan or extension of credit may not exceed fifteen percent (15%) of the unimpaired capital and unimpaired surplus of the savings bank.
(b) The total loans and extensions of credit by a savings bank to a person outstanding at one (1) time and fully secured by readily marketable collateral having a market value, as determined by reliable and continuously available price quotations, at least equal to the amount of the funds outstanding may not exceed ten percent (10%) of the unimpaired capital and unimpaired surplus of the savings bank. The limitation in this subsection is separate from and in addition to the limitation contained in subsection (a).
(c) The total loans and extensions of credit by a savings bank includes any credit exposure to a person arising from a derivative transaction (as defined in 12 U.S.C. 84(b)(3)) between the savings bank and the person.