Bitcoin price just collapsed because the macro selloff collided with a $14 billion options expiry this morning

Bitcoin price has again been knocked lower by an oil shock, higher Treasury yields, erased rate-cut expectations, and a massive Deribit expiry now due to land on top of that already-weakened market. Roughly $14.1 billion in BTC options were set to expire today, Mar. 27, with another $2.2 billion in Ethereum contracts clearing the same morning, bringing the combined total to roughly $16.38 billion. That is nearly 40% of Deribit's BTC open interest rolling off in a single session. Reuters tied the broad risk-off to oil surging above $105, higher Treasury yields, a firming dollar, and markets pricing out Fed rate cuts for 2025 amid intensifying Middle East tensions. Yesterday, BTC registered an intraday low of $68,127, while ETH reached $2,036. The expiry has arrived while the selloff is already underway, and now Bitcoin has fallen as low as $66,200 this morning, with Ethereum falling below $2,000. An indexed chart shows Bitcoin falling roughly 4% from Mar. 25 to Mar. 26 as Brent crude surged above 105 and the U.S. 10-year yield climbed. Why the final 30 minutes carry the most weight Deribit settles expiring contracts at 08:00 UTC using a 30-minute time-weighted average of its index, sampled every four seconds from 07:30 to 08:00 UTC. That produces roughly 450 observations rather than a single closing print, making the delivery price harder to game but also meaning broad market moves during that window feed directly into settlement. Simultaneously, the delta of expiring options and futures decays linearly toward zero across the same 30 minutes. Hedges are adjusting, rolls are compressing, and the pricing clock is running all at once. That convergence draws disproportionate attention relative to the window's length. A 2025 SSRN paper using Deribit data found BTC options activity clusters around 8:00-9:00 GMT, with the settlement-hour effect strongest on days with more expiring contracts and shorter maturities. Both cases apply here. Metric Value Why it matters BTC op...