Last Friday, the United States announced a 100% tariff on all Chinese imports effective November 1, triggering a wave of risk aversion across major markets. The S&P 500 index fell by 2.9%, the VIX fear index surged from 16 to 22, and the ten-year yield dropped from 4.14% to 4.05%. Investors rushed to de-risk, shifting toward defensive allocations, and gold prices rose. Digital currencies also suffered heavy losses, with total open interest reaching $220 billions before the event, and $19 billions in leveraged positions liquidated within just a few hours, setting a record for the largest single-day liquidation in history.
Below are our observations on the spot, perpetual contracts, and options markets.
Based on aggregated data from centralized exchanges, we observed that the sell-off was rapid and synchronized, with most trading pairs on centralized exchanges bottoming out within 55 minutes (UTC 20:40 to 21:35). The sharp price fluctuations quickly led to a market-wide liquidity drain. As prices rebounded from the lows, liquidity rapidly returned.
According to aggregated exchange data for the top 50 cryptocurrencies, we observed:
After the US tariff policy shock on Friday triggered market panic, BTC futures positions quickly shifted to a defensive stance, with traders scrambling for downside protection, pushing total options volume to a record high.
Data covering the 24-hour period during the tariff headlines and market sell-off showed that panic hedging dominated capital flows, with short-term put options aggressively bid. By Saturday, as market sentiment shifted and BTC stabilized around $115,000, trading strategies turned to volatility harvesting and range trading, profiting by selling call options and shorting calendar spreads.
Volatility surged due to heightened demand for hedging, with 7-14 day implied volatility jumping by 20-25 points. Put options with strike prices between $105,000 and $115,000 traded at a 10-15 volatility point premium over calls, marking one of the largest single-day front-end option surges on record.
Options trading volume hit a new high, mainly concentrated in October expiry contracts, with about 70% of premiums flowing into puts below $115,000, highlighting strong demand for downside protection. Deribit’s 24-hour trading volume doubled the previous record.
On Saturday, capital flows reversed to volatility selling, with traders selling call options and straddles in the $118,000-$130,000 range, compressing 1-week implied volatility from 63% to 51%, indicating the market quickly judged the tariff shock as a short-term disturbance.
During Friday’s market crash, both centralized and decentralized perpetual contract markets underwent extreme stress tests, with hundreds of millions of dollars in leveraged positions liquidated within minutes. Centralized exchanges saw record liquidation volumes and brief liquidity gaps, while on-chain DEX perpetuals faced heavy pressure on liquidation systems and insurance funds, yet mainstream DEX platforms maintained normal operations and solvency throughout. This event served as a real-world stress test for the resilience of on-chain trading and margin systems.
Due to some users employing long-short spread strategies, their short positions were subject to automatic deleveraging (ADL), causing positions to temporarily deviate from neutrality, and as prices continued to fall, long positions faced liquidation. On the Hyperliquid platform, over 1,000 wallets were automatically deleveraged, which may have been one of the triggers for the cascade of liquidations.
Taking HYPE, which suffered the most severe network-wide liquidation, as an example, its liquidation amount reached $10.3 billions:
This round of liquidations triggered the first cross-margin automatic deleveraging (ADL) event on mainstream DEX perpetual platforms. The mechanism works by partially closing profitable positions to resolve risk when the insurance fund is depleted.
Gas usage soared to a historic peak of 105K, about three times the daily average since March and double the previous record, reflecting the surge in on-chain liquidations and trading activity during the event.
Let’s look at the situation on centralized exchanges:
Open interest suffered a heavy blow, with most contracts shrinking by about half during the crash, indicating a comprehensive leverage shock.
Funding rates sharply turned negative, a mechanical fluctuation driven by liquidations rather than position adjustments. Only partial recovery was seen over the weekend, with funding rates for most of the top 100 tokens still below average levels.
All of this reminds us: in the cryptocurrency market, risk management and leverage control are crucial, and one must always be prepared for unexpected events.