CHFC 2017 Annual Report

The following is a summary of the amortized cost and fair value of investment securities at December 31, 2017, by maturity, for both available-for-sale and held-to-maturity investment securities. The maturities of residential mortgage-backed securities and collateralized mortgage obligations are based on scheduled principal payments. The maturities of all other debt securities are based on final contractual maturity. December 31, 2017 (Dollars in thousands) Amortized Cost Fair Value Investment Securities Available-for-Sale: Due in one year or less $ 300,364 $ 298,644 Due after one year through five years 751,998 746,082 Due after five years through ten years 616,027 611,822 Due after ten years 306,868 305,174 Preferred stock 1,389 1,824 Total $ 1,976,646 $ 1,963,546 Investment Securities Held-to-Maturity: Due in one year or less $ 89,359 $ 89,149 Due after one year through five years 237,113 233,022 Due after five years through ten years 152,299 148,185 Due after ten years 198,322 192,550 Total $ 677,093 $ 662,906 Securities with a carrying value of $937.2 million and $794.0 million were pledged at December 31, 2017 and 2016, respectively, to secure borrowings and deposits. At December 31, 2017 and 2016, there were no holdings of securities of any one issuer, other than U.S. government and its agencies, in an amount greater than 10% of shareholders' equity. Chemical Financial Corporation Notes to Consolidated Financial Statements December 31, 2017 110