Remarks by FDIC Chairman Martin Gruenberg relevant to SVB's collapse
"The current interest rate environment has had dramatic effects on the profitability and risk profile of banks’ funding and investment strategies. First, as a result of the higher interest rates, longer term maturity assets acquired by banks when interest rates were lower are now worth less than their face values. The result is that most banks have some amount of unrealized losses on securities. The total of these unrealized losses, including securities that are available for sale or held to maturity, was about $620 billion at yearend 2022. Unrealized losses on securities have meaningfully reduced the reported equity capital of the banking industry. The good news about this issue is that banks are generally in a strong financial condition, and have not been forced to realize losses by selling depreciated securities. On the other hand, unrealized losses weaken a bank’s future ability to meet unexpected liquidity needs. That is because the securities will generate less cash when sold than was originally anticipated, and because the sale often causes a reduction of regulatory capital."