(a) Any net earnings of the trust company attributable to capital stock or investments of capital stock shall be credited annually to the account of the treasury and shall be allocated annually to the funds held and managed by the comptroller in accordance with Section 404.071(a).
(b) Funds held by the trust company shall be invested in obligations authorized by law for the investment of funds held and managed by the comptroller.
(c) With respect to specific funds held by the trust company for a particular participant, the trust company has the same investment authority as that participant for those specific funds.
(d) The trust company may hold reserve balances or securities as required by the Federal Reserve System or as required for participation in a depository trust company.