§ 59A-10-6 NMSA 1978

An insurer may deposit and maintain on deposit with the state treasurer through the superintendent, funds and securities eligible for deposit under this article in amount not over one hundred thousand dollars ($100,000) in excess of its required general deposit or special deposit, as the case may be, for purpose of absorbing fluctuations in value of assets held on deposit, and to facilitate exchange and substitution of such assets.