UK banks’ net derivatives balance fell to £9.9 billion in the second quarter of 2026, its smallest level since 2015, according to Risk.net. The headline attributes the narrowing to commodity and equity derivatives, but its accessible report does not show the category-level figures or explain how much each contributed.
What the £9.9 billion figure measures
Risk.net describes the figure as a “net value” or “gap”: the difference between banks’ reported gross derivatives liabilities and assets. In Q2 2026, it reported £3.18 trillion in liabilities and £3.19 trillion in assets. Those totals are both around £3.2 trillion; their reported difference is much smaller.
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| Measure | Reported Q2 2026 figure | Quarter-on-quarter change |
|---|---|---|
| Gross derivatives liabilities | £3.18tn | Up 1.7% |
| Gross derivatives assets | £3.19tn | Up 0.8% |
| Net derivatives balance | £9.9bn | Smallest reported gap since 2015 |
Figures and characterization are from Risk.net’s 2 October 2026 report by Joshua Walker. The accessible report preview does not provide a detailed methodology. “Liability gap” is not, on these figures alone, a regulatory capital shortfall, proof that banks lack assets to meet liabilities, or evidence of insolvency.
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Risk.net says commodity and equity derivatives drove the narrowing of the net balance. The accessible report does not include the component figures or a detailed account of the movements. It therefore does not establish the numerical contribution of either category, or the mechanism behind the change. The £9.9 billion is the overall reported net balance, not a commodity-and-equity figure.
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Why a small net balance does not mean small exposure
Gross liabilities and assets are separate reported totals; their net difference is not a measure of every risk banks face. Derivatives can create counterparty exposure, and margin is one tool used to manage it. The Bank of England’s July 2026 Financial Stability Report examines a related, but different, exposure: UK-bank leverage provided to hedge funds through equity-collateralised gross margin lending and equity-derivative gross notional. That analysis uses UK EMIR, UK SFTR and Bank calculations, and warns that reporting boundaries can leave some activity understated or only partly captured. It is financial-stability context, not corroboration of the Risk.net bank-wide quarterly balance.
These terms should not be treated as interchangeable: a net balance is not gross notional, current exposure, margin or capital. The published Risk.net figures do not by themselves quantify those other measures.
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How margin addresses derivatives counterparty risk
A March 2025 joint consultation from the Prudential Regulation Authority and Financial Conduct Authority explains that initial margin is intended to cover potential market moves during close-out after a default, while variation margin covers subsequent mark-to-market changes. The PRA stated: “Firms are exposed to counterparty credit risk when entering certain derivatives contracts, including single-stock equity and index options contracts.”
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In that consultation, the regulators proposed an indefinite exemption from bilateral margining for single-stock and index options, citing fragmented international implementation and concern that activity could move to jurisdictions without the requirements. This was a proposal in CP5/25, not a statement of the current legal position; the consultation alone does not establish what rules apply today. See the PRA/FCA CP5/25 consultation, March 2025.
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What the Archegos episode illustrates—and what it does not
The Bank of England’s December 2025 Financial Stability Report recalls that Archegos Capital Management failed to meet margin calls on equity total-return swaps in March 2021, illustrating how leveraged equity positions can create risk for prime brokers. The report also cautions that UK EMIR data covers trades with at least one UK counterparty. This historical example explains why exposures and reporting scope matter; it does not explain the Q2 2026 movement or supply its missing category breakdown. See the Bank of England’s December 2025 Financial Stability Report.
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