- October 2025 crash caused $20 billion in liquidations.
- Market makers held large unhedged positions.
- Liquidity dropped to lowest since 2022.
In October, BitMEX reported a major cryptocurrency crash, attributed to extreme leverage, impacting market liquidity and primarily involving Bitcoin and Ethereum derivatives.
The event shifted market dynamics, reducing liquidity and profitability, challenging traditional arbitrage strategies across major digital assets.
Impact of the October Crypto Crash
The October crypto crash, attributed to extreme leverage and forced liquidations, left market makers with substantial coin holdings. This resulted in the lowest derivatives liquidity levels since 2022 according to BitMEX's internal report. BitMEX Research Team, BitMEX Research, BitMEX, noted, "This crash resulted in approximately $20 billion in cascading liquidations, severely damaging the neutral strategies of market makers and causing market liquidity to drop to its lowest level since 2022."
BitMEX’s derivatives team reported $20 billion in liquidations, significantly affecting BTC and ETH perp markets. Market makers were compelled to hold unhedged spot positions, impacting their neutral strategies and profitability.
The crash led to order-book liquidity falling to its lowest in three years. This contraction forced market participants to reconsider their strategies, particularly those reliant on delta-neutral funding rate arbitrage.
The event underscored the systemic risks posed by high leverage and crowded trades. BitMEX emphasized the challenges faced by market makers in managing involuntary inventory during rapid market declines.
BitMEX identified shifts in delta-neutral trading profitability, noting a decline to annualized returns below 4%. Market makers needed to adjust swiftly to these decreased margins.
This incident may lead to more cautious leverage practices, reinforcing the need for robust risk management amid unpredictable market conditions. BitMEX highlighted the importance of funding-rate management in maintaining strategy viability.