Del. Code tit. 18, § 2937

Each insurer which shall have registered policies or bonds outstanding shall make additional deposits from time to time, as the Commissioner may prescribe, in amounts of not less than $5,000, and of such securities as domestic life insurers are authorized by law to invest in, so that the market or amortized value of the securities on deposit shall always at least equal the net reserve required by the method and basis of valuation prescribed in §§ 1111-1113 of this title, on all the registered policies and bonds in force in the insurer.