(1) An insurer may lend and invest its funds upon the pledge of securities eligible for investment under this subchapter.
(2) As at date made, no loan shall exceed in amount ninety percent (90%) of the market value of such collateral pledged.
(3) The amount so loaned shall be included pro rata in determining the maximum percentage of funds permitted under this subchapter to be invested in the respective categories of securities so pledged.