An insurer may invest in the stocks of other solvent insurers formed under the laws of the United States or any state thereof, provided that the total amount of the insurer's investments in excess of the net asset value of the stock acquired shall not at any time exceed the greater of 10 percent of assets of the insurer or the insurer's capital and surplus less the minimum capital and surplus required of said insurer to transact insurance by Sections 27-3-7 and 27-3-8 of the Alabama Insurance Code.
Ala. Code § 27-41-18 (1975)