Note 3 - Investment Securities

3 Months Ended

Mar. 31, 2023

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

(3) Investment Securities

Debt securities purchased in which Bancorp has the intent and ability to hold to their maturity are classified HTM securities. All other investment securities are classified as AFS securities.

AFS Debt Securities

The following table summarizes the amortized cost, unrealized gains and losses, and fair value of Bancorp’s AFS debt securities portfolio:

(in thousands)	Amortized		Unrealized
March 31, 2023	cost		Gains		Losses				Fair value
U.S. Treasury and other U.S. Government obligations	$	122,752	$	-	$	(6,464	)	$	116,288
Government sponsored enterprise obligations		142,900		75		(5,196	)		137,779
Mortgage backed securities - government agencies		851,879		-		(108,424	)		743,455
Obligations of states and political subdivisions		142,901		-		(14,176	)		128,725
Other		5,924		-		(319	)		5,605
Total available for sale debt securities	$	1,266,356	$	75	$	(134,579	)	$	1,131,852
December 31, 2022
U.S. Treasury and other U.S. Government obligations	$	122,966	$	-	$	(7,927	)	$	115,039
Government sponsored enterprise obligations		149,773		290		(6,437	)		143,626
Mortgage backed securities - government agencies		874,265		58		(121,585	)		752,738
Obligations of states and political subdivisions		145,016		1		(17,418	)		127,599
Other		5,957		-		(342	)		5,615
Total available for sale debt securities	$	1,297,977	$	349	$	(153,709	)	$	1,144,617

HTM Debt Securities

The following table summarizes the amortized cost, unrecognized gains and losses, and fair value of Bancorp’s HTM debt securities portfolio:

(in thousands)	Carrying		Unrecognized
March 31, 2023	value		Gains		Losses				Fair value
U.S. Treasury and other U.S. Government obligations	$	217,906	$	-	$	(7,065	)	$	210,841
Government sponsored enterprise obligations		27,229		-		(1,884	)		25,345
Mortgage backed securities - government agencies		223,616		-		(25,902	)		197,714
Total held to maturity debt securities	$	468,751	$	-	$	(34,851	)	$	433,900
December 31, 2022
U.S. Treasury and other U.S. Government obligations	$	217,794	$	-	$	(9,166	)	$	208,628
Government sponsored enterprise obligations		27,507		-		(2,559	)		24,948
Mortgage backed securities - government agencies		227,916		-		(29,659	)		198,257
Total held to maturity debt securities	$	473,217	$	-	$	(41,384	)	$	431,833

All investment securities classified as HTM by Bancorp as of March 31, 2023 are obligations of the U.S. Government and/or are issued by U.S. Government-sponsored agencies and have an implicit or explicit government guarantee. Therefore, no ACL has been recorded for Bancorp’s HTM securities as of March 31, 2023. Further, as of March 31, 2023, none of Bancorp’s HTM securities were in non-accrual or past due status.

Debt Securities by Contractual Maturity

A summary of AFS and HTM debt securities by contractual maturity as of March 31, 2023 follows:

	AFS Debt Securities				HTM Debt Securities
(in thousands)	Amortized cost		Fair value		Carrying value		Fair value
Due within one year	$	38,238	$	37,810	$	65,167	$	63,709
Due after one year but within five years		154,856		146,932		153,365		147,726
Due after five years but within 10 years		67,697		60,871		26,014		24,170
Due after 10 years		153,686		142,784		589		581
Mortgage backed securities - government agencies		851,879		743,455		223,616		197,714
Total	$	1,266,356	$	1,131,852	$	468,751	$	433,900

Actual maturities may differ from contractual maturities because some issuers have the right to call or prepay obligations with or without prepayment penalties. The investment portfolio includes MBS, which are guaranteed by agencies such as FHLMC, FNMA and GNMA. These securities differ from traditional debt securities primarily in that they may have uncertain principal payment dates and are priced based on estimated prepayment rates on the underlying collateral.

At March 31, 2023 and December 31, 2022, there were no holdings of debt securities of any one issuer, other than the U.S. government and its agencies, in an amount greater than 10% of stockholders’ equity.

Accrued interest on the AFS and HTM securities portfolios totaled $3 million and $729,000 at March 31, 2023, respectively. Accrued interest on the AFS and HTM securities portfolios totaled $4 million and $2 million at December 31, 2022, respectively. Accrued interest on the AFS and HTM securities portfolios are included in the condensed consolidated balance sheets.

AFS debt securities totaling $247 million were acquired on March 7, 2022, as a result of the CB acquisition, a portion of which were classified as HTM at acquisition. Shortly after acquisition, three securities with a total fair value of $2 million were sold, resulting in a loss on the sale of $92,000, which was recorded as a fair value adjustment through goodwill during the first quarter of 2022.

Securities with a carrying value of $783 million and $1.1 billion were pledged at March 31, 2023 and December 31, 2022, respectively, to secure accounts of commercial depositors in cash management accounts, public deposits and uninsured cash balances for WM&T accounts.

Based on an evaluation of available information including security type, counterparty credit quality, past events, current conditions, and reasonable and supportable forecasts that are relevant to collectability, Bancorp has concluded that it expects to receive all contractual cash flows from each security held in its AFS and HTM debt securities portfolio. As such, no allowance or impairment was recorded with respect to investment securities as of March 31, 2023.

Unrealized and Unrecognized Loss Analysis on Debt Securities

Debt securities with unrealized and unrecognized losses at March 31, 2023 and December 31, 2022, aggregated by investment category and length of time securities have been in a continuous unrealized loss position follows:

	AFS Debt Securities
	Less than 12 months					12 months or more					Total
(in thousands)	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
March 31, 2023	value		losses			value		losses			value		losses
U.S. Treasury and other U.S. Government obligations	$	-	$	-		$	116,288	$	(6,464	)	$	116,288	$	(6,464	)
Government sponsored enterprise obligations		43,668		(157	)		76,479		(5,039	)		120,147		(5,196	)
Mortgage-backed securities - government agencies		113,174		(3,879	)		620,688		(104,545	)		733,862		(108,424	)
Obligations of states and political subdivisions		7,312		(42	)		107,916		(14,134	)		115,228		(14,176	)
Other		-		-			5,604		(319	)		5,604		(319	)
Total AFS debt securities	$	164,154	$	(4,078	)	$	926,975	$	(130,501	)	$	1,091,129	$	(134,579	)
December 31, 2022
U.S. Treasury and other U.S. Government obligations	$	3,025	$	(57	)	$	111,966	$	(7,870	)	$	114,991	$	(7,927	)
Government sponsored enterprise obligations		99,785		(3,553	)		22,484		(2,884	)		122,269		(6,437	)
Mortgage-backed securities - government agencies		180,263		(11,114	)		567,988		(110,471	)		748,251		(121,585	)
Obligations of states and political subdivisions		64,165		(3,763	)		56,864		(13,655	)		121,029		(17,418	)
Other		4,865		(213	)		749		(129	)		5,614		(342	)
Total AFS debt securities	$	352,103	$	(18,700	)	$	760,051	$	(135,009	)	$	1,112,154	$	(153,709	)

	HTM Debt Securities
	Less than 12 months					12 months or more					Total
(in thousands)	Fair		Unrecognized			Fair		Unrecognized			Fair		Unrecognized
March 31, 2023	value		losses			value		losses			value		losses
U.S. Treasury and other U.S. Government obligations	$	-	$	-		$	210,841	$	(7,065	)	$	210,841	$	(7,065	)
Government sponsored enterprise obligations		1,602		(4	)		23,743		(1,880	)		25,345		(1,884	)
Mortgage-backed securities - government agencies		409		(9	)		197,305		(25,893	)		197,714		(25,902	)
Total HTM debt securities	$	2,011	$	(13	)	$	431,889	$	(34,838	)	$	433,900	$	(34,851	)
December 31, 2022
U.S. Treasury and other U.S. Government obligations	$	208,628	$	(9,166	)	$	-	$	-		$	208,628	$	(9,166	)
Government sponsored enterprise obligations		24,948		(2,559	)		-		-			24,948		(2,559	)
Mortgage-backed securities - government agencies		198,257		(29,659	)		-		-			198,257		(29,659	)
Total HTM debt securities	$	431,833	$	(41,384	)	$	-	$	-		$	431,833	$	(41,384	)

Applicable dates for determining when securities are in unrealized and unrecognized loss positions are March 31, 2023 and December 31, 2022. As such, it is possible that a security had a market value lower than its amortized cost on other days during the past 12 months, but is not in the “Less than 12 months” category above.

For debt securities with unrealized and unrecognized loss positions, Bancorp evaluates the securities to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or non-credit related factors. Any impairment that is not credit-related is recognized in AOCI, net of tax. Credit-related impairment is recognized as an a ACL for debt securities on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Accrued interest receivable is excluded from the estimate of credit losses. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if Bancorp intends to sell an impaired debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount would be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation.

In evaluating debt securities in unrealized and unrecognized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, Bancorp considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers’ financial condition, among other factors. Unrealized and unrecognized losses on Bancorp’s investment securities portfolio have not been recognized as an expense because the securities are of high credit quality, and the decline in fair values is attributable to changes in the prevailing interest rate environment since the purchase date. Fair value is expected to recover as securities reach maturity and/or the interest rate environment returns to conditions similar to when these securities were purchased. These investments consisted of 523 and 547 separate investment positions as of March 31, 2023 and December 31, 2022, respectively. By dollar value, approximately 98% of the portfolio was in a loss position as of both March 31, 2023 and December 31, 2022. There were no credit related factors underlying unrealized and unrecognized losses on debt securities at March 31, 2023 and December 31, 2022.