Securities & Investments
HTM Unrealized Losses
Also known as HTM Unrealized Loss
HTM unrealized losses are the gap between the amortized-cost carrying value of a bank's held-to-maturity securities and their lower current market value. The loss is disclosed but not recognized on the balance sheet, a hidden hit to economic capital.
How is HTM Unrealized Losses calculated?
Because HTM securities are carried at amortized cost, the decline in their fair value when rates rise never touches reported equity or capital. Schedule RC-B discloses both the amortized cost and the fair value, so the unrecognized loss can be calculated.
Why does HTM Unrealized Losses matter?
This is the metric the 2023 regional-bank crisis put on the map. A bank can report healthy regulatory capital while sitting on HTM unrealized losses large enough to wipe much of that capital out if the securities had to be sold, exactly the dynamic that broke Silicon Valley Bank.
How do you interpret HTM Unrealized Losses?
The number that matters is the unrealized loss as a share of equity or regulatory capital. A loss equal to a small fraction of capital is manageable; one approaching or exceeding tangible common equity is a solvency question masked by accounting, especially if the bank's liquidity is also thin.
What do HTM Unrealized Losses levels indicate?
| Range | Label | Interpretation |
|---|---|---|
| < 10% of equity | Benign | Hidden loss is a small fraction of the capital cushion. |
| 10-25% of equity | Normal | Notable but manageable unrecognized loss. |
| 25-50% of equity | Watch | Unrecognized loss is a material share of capital. |
| > 50% of equity | Concern | Forced sales could devastate the capital base. |
Worked example
Frequently asked
Why isn't the HTM unrealized loss in the capital ratios?
Held-to-maturity securities are carried at amortized cost, so their unrealized losses are never marked through earnings, AOCI, or regulatory capital. The loss is disclosed in the footnotes/Schedule RC-B but stays off the balance sheet unless the securities are sold.
How did this contribute to the 2023 bank failures?
Banks with large HTM losses and weak liquidity were vulnerable: when depositors fled, the banks faced selling securities at a loss, which would have crystallized the hidden hit and exposed thin true capital. The fear of that outcome accelerated the runs.
Sources
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