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INVESTMENT SECURITIES
9 Months Ended
Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
INVESTMENT SECURITIES INVESTMENT SECURITIES
The following table presents the amortized cost and fair value of the investment securities portfolio as of the dates indicated:
($ in thousands)Amortized CostGross Unrealized GainsGross Unrealized LossesFair Value
September 30, 2022
Securities held-to-maturity:
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities$153,127 $— $(29,178)$123,949 
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations61,426 — (11,950)49,476 
Municipal securities114,204 — (24,277)89,927 
Total securities held-to-maturity$328,757 $ $(65,405)$263,352 
Securities available-for-sale:
SBA loan pool securities$12,156 $$(54)$12,106 
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities12,012 — (1,316)10,696 
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations151,582 — (10,425)141,157 
Non-agency residential mortgage-backed securities52,076 — (10,562)41,514 
Collateralized loan obligations492,775 — (20,099)472,676 
Corporate debt securities177,774 12 (8,370)169,416 
Total securities available-for-sale$898,375 $16 $(50,826)$847,565 
December 31, 2021
Securities available-for-sale:
SBA loan pool securities$14,679 $— $(88)$14,591 
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities190,382 2,898 (1,311)191,969 
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations242,458 1,171 (2,088)241,541 
Municipal securities117,913 2,641 (1,539)119,015 
Non-agency residential mortgage-backed securities56,014 11 — 56,025 
Collateralized loan obligations521,275 — (2,311)518,964 
Corporate debt securities162,002 11,603 (7)173,598 
Total securities available-for-sale$1,304,723 $18,324 $(7,344)$1,315,703 

During the first quarter of 2022, certain longer-duration fixed-rate mortgage-backed securities and municipal securities with an amortized cost basis of $346.0 million were transferred from the available-for-sale portfolio to the held-to-maturity portfolio. At the time of the transfer, the securities had an unrealized gross loss of $16.6 million, which is subsequently amortized into interest income as a yield adjustment over the remaining life of the securities. The unrealized losses remaining in accumulated other comprehensive income are also accreted into interest income in a consistent manner. As a result, there is no impact on the consolidated statements of operations.
At September 30, 2022, our investment securities portfolio consisted of agency securities, municipal securities, mortgage-backed securities, collateralized loan obligations, and corporate debt securities. The expected maturities of these types of securities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
There was no allowance for credit losses for debt securities held-to-maturity and available-for sale as of September 30, 2022 and December 31, 2021. We do not consider unrealized losses on these securities to be attributable to credit-related factors, as the unrealized losses have occurred as a result of changes in non-credit related factors such as interest rates, market spreads, and market conditions subsequent to purchase.
Accrued interest receivable on debt securities held-to-maturity and available-for-sale totaled $8.2 million and $4.7 million at September 30, 2022 and December 31, 2021, and is included within other assets in the accompanying consolidated statements of financial condition.
At September 30, 2022 and December 31, 2021, there were no holdings of any one issuer, other than U.S. government agency and sponsored enterprises, in an amount greater than 10 percent of our stockholders’ equity.

Pledged Securities
Investment securities with carrying values of $123.1 million and $8.9 million as of September 30, 2022 and December 31, 2021 were pledged to the Federal Reserve Discount Window ("FRB Discount Window"). Investments securities with carrying values of $214.6 million and zero as of September 30, 2022 and December 31, 2021 were pledged to secure FHLB advances.

Securities Available-for-Sale
The following table presents proceeds from sales and calls of securities available-for-sale and the associated gross gains and losses realized through earnings upon the sales and calls of securities available-for-sale for the periods indicated:
Three Months Ended
September 30,
Nine Months Ended
September 30,
($ in thousands)2022202120222021
Gross realized gains$— $— $209 $— 
Gross realized losses— — (193)— 
Net realized gains on sales and calls$ $ $16 $ 
Proceeds from sales and calls$ $20,000 $56,145 $120,230 
The following table summarizes the investment securities available-for-sale with unrealized losses by security type and length of time in a continuous, unrealized loss position as of the dates indicated:
Less Than 12 Months12 Months or LongerTotal
($ in thousands)Fair
Value
Gross Unrealized LossesFair
Value
Gross Unrealized LossesFair
Value
Gross Unrealized Losses
September 30, 2022
Securities available-for-sale:
SBA loan pool securities
$— $— $9,474 $(54)$9,474 $(54)
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities10,696 (1,316)— — 10,696 (1,316)
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
110,864 (4,705)30,293 (5,720)141,157 (10,425)
Non-agency residential mortgage-backed securities
41,514 (10,562)— — 41,514 (10,562)
Collateralized loan obligations
233,975 (10,025)238,702 (10,074)472,677 (20,099)
Corporate debt securities
166,497 (8,370)— — 166,497 (8,370)
Total securities available-for-sale
$563,546 $(34,978)$278,469 $(15,848)$842,015 $(50,826)
December 31, 2021
Securities available-for-sale:
SBA loan pool securities$— $— $14,591 $(88)$14,591 $(88)
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
67,588 (1,311)— — 67,588 (1,311)
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
85,290 (1,184)17,754 (904)103,044 (2,088)
Municipal securities
44,748 (919)10,762 (620)55,510 (1,539)
Collateralized loan obligations
81,962 (38)253,002 (2,273)334,964 (2,311)
Corporate debt securities
4,993 (7)— — 4,993 (7)
Total securities available-for-sale
$284,581 $(3,459)$296,109 $(3,885)$580,690 $(7,344)

At September 30, 2022, our securities available-for-sale portfolio consisted of 82 securities, of which 80 securities were in an unrealized loss position. At December 31, 2021, our securities available-for-sale portfolio consisted of 119 securities, of which 46 securities were in an unrealized loss position.
During the three and nine months ended September 30, 2022 and 2021, there was no provision for credit losses related to securities available-for-sale. We monitor our securities portfolio to ensure it has adequate credit support. We consider the lowest credit rating for identification of credit impairment for collateralized loan obligations and other securities. The decline in fair value of our securities since acquisition was attributable to a combination of changes in interest rates and general volatility in the credit market conditions in response to the economic uncertainty caused by many factors, including but not limited to, the global pandemic, rising inflation and conflict between Russia and Ukraine. We do not currently intend to sell any of the securities in an unrealized loss position and further believe, it is more likely than not, that we will not be required to sell these securities before their anticipated recovery. As of September 30, 2022, all of our collateralized loan obligations investment securities in an unrealized loss position received an investment grade credit rating.
The following table presents the amortized cost and fair value of the investment securities portfolio, based on the earlier of contractual maturity dates or next repricing date, as of September 30, 2022:
Held-to-MaturityAvailable-for-Sale
($ in thousands)Amortized CostFair ValueAmortized CostFair Value
Earlier of maturity or next repricing date:
Within one year$— $— $585,237 $564,436 
One to five years— — 173,721 164,704 
Five to ten years28,705 24,157 64,851 56,549 
Greater than ten years300,052 239,195 74,566 61,876 
Total$328,757 $263,352 $898,375 $847,565 
Contractual maturities may not reflect the actual maturities of the investments. The average lives for mortgage-backed securities and collateralized mortgage obligations likely will be shorter than their contractual maturities due to prepayments and amortization.
The following table presents the fair value and weighted average yields or tax-equivalent yields using amortized cost of the securities held-to-maturity portfolio as of September 30, 2022, based on the earlier of contractual maturity dates or next repricing dates:
One year or lessMore than One Year through Five YearsMore than Five Years through Ten YearsMore than Ten YearsTotal
($ in thousands)Fair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average Yield
Securities held-to-maturity:
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities$— — %$— — %$7,960 2.52 %$115,989 2.70 %$123,949 2.69 %
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations— — %— — %— — %49,476 2.64 %49,476 2.64 %
Municipal securities (1)
— — %— — %16,197 2.19 %73,730 2.71 %89,927 2.62 %
Total securities held-to-maturity$  %$  %$24,157 2.29 %$239,195 2.69 %$263,352 2.65 %
(1) Computed on a tax-equivalent basis.
The following table presents the fair value and weighted average yields using amortized cost of the securities available-for-sale portfolio as of September 30, 2022, based on the earlier of contractual maturity dates or next repricing dates:
One year or lessMore than One Year through Five YearsMore than Five Years through Ten YearsMore than Ten YearsTotal
($ in thousands)Fair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average YieldFair
Value
Weighted-Average Yield
Securities available-for-sale:
SBA loan pool securities$12,106 1.82 %$— — %$— — %$— — %$12,106 1.82 %
U.S. government agency and U.S. government sponsored enterprise residential mortgage-backed securities
— — %— — %10,696 2.23 %— — %10,696 2.23 %
U.S. government agency and U.S. government sponsored enterprise collateralized mortgage obligations
79,654 3.16 %8,138 2.72 %33,003 1.92 %20,362 1.83 %141,157 2.61 %
Non-agency residential mortgage-backed securities
— — %— — %— — %41,514 2.50 %41,514 2.50 %
Collateralized loan obligations
472,676 4.23 %— — %— — %— — %472,676 4.23 %
Corporate debt securities
— — %156,566 4.82 %12,850 5.73 %— — %169,416 4.89 %
Total securities available-for-sale
$564,436 4.03 %$164,704 4.71 %$56,549 2.76 %$61,876 2.30 %$847,565 3.93 %