S.D. Codified Laws § 58-27-12.1 (2026)
An insurer may invest up to twenty percent of its admitted assets in any bonds, warrants, or evidence of indebtedness described in §§ 58-27-11 and 58-27-12 and not rated pursuant to § 58-27-108. The valuation of such investments shall be the amortized cost of the investments or the market value of the investments, whichever is less.
Source: SL 2004, ch 309 , § 1.