Direct Answer
A bond-market crisis occurs when rising yields, forced selling, or collateral calls overwhelm leveraged fixed-income positions, turning a yield move into a self-reinforcing market dislocation. The primary episode documented here is the UK gilt crisis and LDI shock of September to October 2022, when a sudden rise in long-dated gilt yields generated collateral calls on pension funds' leveraged liability-driven investing strategies.
Bond-Market Crises: Historical Case Studies
This hub explains how duration, leverage, collateral calls, and market liquidity can destabilize otherwise high-quality fixed-income portfolios. It is a mechanism-first collection: readers can move from broad explanation to specific historical episodes, compare events, and see where a superficially similar analogy breaks.
What to Watch Across These Events
Focus on duration, margin, collateral, forced selling, pension and LDI mechanics, and central-bank intervention. A useful comparison asks what had to stay true before the event, who was forced to act when conditions changed, how losses moved across balance sheets, and which policy tool addressed liquidity, solvency, inflation, confidence, or market functioning.
A useful question for any episode: could the mechanism be identified from publicly available information before the event, and if so, what would an investor have had to believe and do differently? The case studies here are written to answer that question explicitly, separating what was visible from what only appeared obvious afterwards.
Case Studies in This Category
Each case study examines the episode as a chain: the vulnerability that accumulated beforehand, the catalyst that triggered the event, how losses and stress transmitted through the system, what policy response followed, and how recovery unfolded. Links below go to the full case study for each episode.
Compare the Mechanism, Not Just the Headline
Two events can share a category label and still require different investor conclusions. A banking event driven by uninsured-deposit flight differs from one dominated by loan losses. A currency crisis under a hard peg differs from a floating exchange-rate adjustment. An inflation episode created by a temporary supply shock differs from one in which expectations and policy credibility become unanchored. The case studies here are designed to surface those differences explicitly, so the comparison produces a better-calibrated understanding of risk rather than a simple analogy.
Comparison across events in this category is most useful when it asks: what structural condition had to be in place before the event could occur? Which of those conditions were measurable in advance? What was the policy constraint that shaped the response? And how long did recovery take, compared to the episode's depth?
Frequently Asked Questions
What causes a bond-market crisis?
Bond-market crises typically arise from a combination of duration exposure, leverage, and a trigger that forces selling at the same time. When investors hold long-duration bonds financed with short-term borrowing or derivative structures, a yield rise reduces the bond's market value while collateral calls or margin requirements demand immediate cash. Forced selling pushes yields higher, which generates more collateral calls, creating a feedback loop. The UK gilt crisis of 2022 is the clearest recent example: pension funds using leveraged LDI strategies faced simultaneous collateral calls as gilt yields rose sharply after the mini-budget announcement.
What is liability-driven investing and why did it create systemic risk?
Liability-driven investing is a strategy pension funds use to match their assets more closely to the interest-rate sensitivity of their future pension liabilities. Because liabilities are very long-duration, LDI strategies typically hold long-dated gilts and interest-rate swaps, often with leverage to amplify the interest-rate hedge while freeing capital for return-seeking assets. The leverage creates collateral requirements that rise when gilt yields increase. In September 2022, when yields moved sharply, many pension funds faced simultaneous collateral calls they could not meet without selling gilts, which pushed yields higher still and spread the stress.
How did the Bank of England respond to the gilt crisis?
The Bank of England announced an emergency gilt purchase programme on 28 September 2022, committing to buy up to 65 billion pounds of long-dated gilts over thirteen trading days to restore orderly market conditions. The intervention was framed explicitly as a financial stability measure, separate from the Bank's monetary policy objective of raising rates to reduce inflation. The purchases were temporary: the Bank ended the programme on 14 October 2022, consistent with its stated commitment to begin quantitative tightening. The episode is documented as a case study in how central banks must sometimes act against their own monetary-policy direction to prevent market dysfunction.
What does a bond-market crisis mean for equity investors?
Bond-market crises affect equity investors through several channels. Rising yields compress equity valuations by raising the discount rate applied to future earnings. Forced selling of bonds can spill into equities if investors need to raise cash across asset classes. Pension fund stress, as in the UK gilt crisis, can prompt funds to sell equities to meet collateral calls or rebalance. Wider credit spreads increase corporate funding costs, affecting earnings. In 2022 the correlation between bond and equity returns turned sharply positive, meaning a portfolio that held both as diversifiers saw both fall simultaneously, which was the distinguishing feature of that year.