What liquidation actually is on a crypto futures position
Liquidation is the forced closure of your position the moment your margin drops below the exchange's maintenance threshold, and it is the single mechanism that turns a leveraged loser into a total loss of collateral. It is not a margin call you can negotiate and it is not a polite request to top up your account.
Liquidation in crypto futures is the automatic closure of a leveraged position when its margin falls below the maintenance margin requirement. The exchange sells the position into the order book, usually with a penalty, and you lose the collateral assigned to that position, or the whole account under cross margin.
I treat every leveraged position as a liquidation waiting for the wrong price, because the liquidation engine does not care about my thesis, my time horizon, or whether the move recovers an hour later. Its only job is to make sure the exchange is never left holding a losing position.
If the leverage math itself is unfamiliar, pair this page with the guide to the best leverage for crypto futures, which covers how to size so the liquidation price sits well beyond your stop.
The margin ratio that triggers liquidation
Every open position has a margin ratio, and the exchange liquidates when that ratio falls to the maintenance margin requirement. Coinbase's derivatives help center defines it plainly: the margin ratio is the maintenance margin requirement divided by the total funds available for margin.
As the position loses money, the funds for margin shrink and the ratio rises toward the threshold. When it crosses, the liquidation engine takes over and the position is gone, often within the same second.
I watch that ratio in real time on any trade I hold overnight, because funding charges and fees quietly erode it even when price sits still. A position that looked safe at entry can drift into liquidation territory purely from funding drag.
Isolated vs cross margin: what liquidation can take
The margin mode you choose decides whether a liquidation costs you part of your account or all of it. Isolated margin assigns a fixed amount of collateral to one position, so the maximum a liquidation can take is that amount, while cross margin lets the position draw on your full balance to stay alive.
Cross margin sounds safer because it resists liquidation longer, but it inverts the risk: a liquidation under cross margin can sweep the entire account, not just one position's collateral.
I run isolated margin on every speculative leveraged trade so that the worst-case loss is a known, capped number. Cross margin belongs on hedged positions only, where the offsetting leg caps the real risk.
What happens after a liquidation: the insurance fund and ADL
Once a position is liquidated, the exchange takes it over and tries to offload it into the order book at the best available price. If the market is moving fast and the position can be closed only at a loss worse than the remaining margin, someone has to eat that shortfall.
That someone is normally the exchange's insurance fund, which is funded by the penalties taken from liquidated traders. When the fund is large enough, it absorbs the gap and the liquidated trader simply loses their margin.
I keep auto-deleveraging in mind because in extreme conditions the insurance fund can be exhausted, and the exchange then uses auto-deleveraging, known as ADL, to forcibly close the most profitable opposing positions to cover the losses. MetaMask's liquidation primer walks through how the initial margin, leverage, maintenance rate, and fees all feed the liquidation price the engine defends.
The 2025 liquidation reality
The reason this page exists is that liquidation is not a theoretical edge case in crypto. On October 10, 2025, more than $19 billion in crypto leverage was liquidated in roughly a single day, an event FTI Consulting still describes as a tail-risk spike.
A month earlier, the September 2025 selloff dubbed Red Monday saw about $1.5 billion liquidated in a concentrated window across more than 100,000 retail trade setups. Those were not random accidents; they were crowded, over-leveraged books getting sold into thin bids.
I take from those numbers that the question is never whether liquidation can happen to a position, only whether I have sized it so the worst case is an annoying lesson rather than a terminal one.
How to keep liquidation theoretical instead of actual
Avoiding liquidation comes down to four habits that cost nothing and prevent almost every blown account. Size from the dollars you can lose, set a stop loss beyond your invalidation on every trade, keep leverage low enough that the liquidation price sits far outside normal volatility, and use isolated margin so one bad trade cannot clean out the balance.
I treat a stop loss as the single most important of the four, because it is the only mechanism that closes my position at a price I chose rather than at the price the liquidation engine dictates. Without a stop, the liquidation price is the only exit, and it is set by leverage, not by your thesis.
For live risk accountability rather than a solo grind, the futures trading groups on Whop include rooms built around leveraged execution and position sizing, and the broader crypto derivatives and leverage cluster covers the funding rates and leverage decisions that feed straight into your liquidation price.
How to calculate your own liquidation price
Your liquidation price is the point where your margin balance falls to the maintenance margin the exchange requires to keep the position open. A rough rule for a long is entry price times one minus one over leverage, but the exact figure also depends on the maintenance margin tier, trading fees and any funding you have already paid.
At 10x leverage on BTC at $60,000, the position is gone somewhere around a 9 to 10 percent drop before fees, which is closer than most new traders guess. I always read the exact number off the exchange's order panel instead of estimating, because the figure shifts with position size.
Exchanges publish maintenance margin tiers that rise with larger positions, so a big account liquidates sooner than the simple formula suggests. Binance and Bybit both publish these tier tables, and checking the tier for your intended size is one of the dullest and most useful habits in leveraged trading.
Mark price vs last price: which one liquidates you
Exchanges liquidate on the mark price, not the last traded price, and the distinction matters when the order book thins out. The mark price is a fair-value blend of the index price and the contract's own funding, designed to stop a single wick from liquidating positions that are not really underwater.
That means a momentary spike on one exchange does not usually trigger your liquidation, because the mark price smooths across the index. It also means the liquidation level on your panel is an estimate against the mark, not a guarantee against every tick.
I watch the mark price rather than the chart's last price when a position is getting close. The number that ends the trade is the mark, and it is the one number the liquidation engine actually reads.
The cascade: how liquidations feed themselves
A liquidation cascade is what turns a normal pullback into a vertical flush, and the mechanics are mechanical rather than mysterious. When price drops past a cluster of leveraged longs, those positions are force-closed into the market, and the forced selling pushes price lower.
That lower price then trips the next tier of liquidation levels, which close into an even thinner book, and the loop repeats until the leveraged inventory is cleared. The October 2025 and Red Monday events were textbook cascades, where the size of the flush was set by the leverage in the system, not by the news.
I keep leverage low precisely because the cascade is the one scenario a stop cannot fully save me from. If price gaps through the level faster than the order fills, the position is part of the cascade, which is why sizing is the real defence.