Crypto liquidations explained: why price takes out the stops

A crypto liquidation is the forced closing of a leveraged position once the trader's collateral can no longer cover the loss. The exchange does not ask: when the mark price reaches the liquidation price, a long is sold and a short is bought back with a market order. Those orders move the price themselves, knock out the next layer of positions and set off a cascade. That is how the market "takes out the stops" for billions of dollars in minutes. Below we explain how the liquidation price is calculated, why cascades feed on themselves, where the liquidation numbers on aggregators come from and why they are understated, how to read a liquidation heatmap, and what all this looked like in the bitcoin market on October 12, 2026.

What a liquidation is and why the exchange closes your position

On futures and perpetual contracts a trader posts only part of the position's value as initial margin and effectively borrows the rest from the exchange. While the position is open, the exchange requires a minimum collateral called maintenance margin. Under the Binance Futures liquidation protocols, liquidation is triggered when collateral (initial margin plus realized and unrealized PnL) falls below the maintenance margin.

One detail matters a lot: the decision is based not on the last trade but on the mark price. Binance describes it as a combination of funding data and a basket of spot prices from multiple exchanges, and states that it uses the mark price to avoid unnecessary liquidations and to combat market manipulation. A brief wick in one exchange's order book therefore rarely liquidates anyone, while a move in the broader spot market does.

Maintenance margin is not a fixed number. In its USDⓈ-M leverage and margin guide Binance gives the formula "Maintenance Margin = Notional Position Value × Maintenance Margin Rate − Maintenance Amount" and adds that the larger the position, the higher the rate. On the decentralized exchange Hyperliquid, according to its docs, maintenance margin is half of the initial margin at max leverage: from 1.25% for assets with 40x max leverage to 16.7% for assets capped at 3x.

How the liquidation price is calculated

Exact formulas differ by exchange, but the logic is the same: the distance to liquidation is roughly 1/leverage minus the maintenance margin rate. Simplified for isolated margin, ignoring fees:

• long: liquidation price = entry × (1 − 1/leverage + maintenance margin rate);
• short: liquidation price = entry × (1 + 1/leverage − maintenance margin rate).

For a long opened at $84,000 with a 0.4% maintenance margin rate (the first-tier BTC/USDT rate used in the worked example in KuCoin's help center) this gives:

In practice the level sits slightly closer to entry: exchanges subtract a liquidation fee (KuCoin's formula carries it as a separate term, 0.06% in its example), and under cross margin every position and the whole account balance feed into the calculation. For BTCUSDT on October 12, 2026 the 24-hour range was $82,975⁠–⁠$84,352 (CoinLab data): a 50x long opened at the day's high would have been liquidated by an ordinary intraday pullback with no news at all.

Why price "takes out the stops": the mechanics of a cascade

A long liquidation is a market sell; a short liquidation is a market buy. When price falls toward a level where many longs with similar leverage are clustered, the exchange starts selling them one after another. That selling eats the bids in the book, price drops further, and the next layer of positions with slightly lower leverage gets hit. That is a cascade: nobody needs to "hunt" the stops, because the structure of leverage itself turns a moderate move into a crash.

From the outside it looks like one long candle on huge volume with a sharp drop in open interest: positions are not changing hands, they are disappearing. The more one-sided positioning was before the move (high positive funding, rising OI), the more fuel the cascade has.

The largest example is October 10, 2025. According to 21Shares, after the announcement of 100% tariffs on Chinese imports an estimated $19 billion in leveraged positions was unwound within a day, nearly 90% of them longs, and bitcoin fell roughly 12.5% intraday, from about $122,600 to about $107,000. Per the BitPinas ranking built on Coinglass data, it is the biggest liquidation day on record:

Tellingly, 21Shares notes that the October 2025 price drawdown was smaller than in previous major deleveraging events (19⁠–⁠24% over about 60 days), yet the concentration of longs was unprecedented. The size of a cascade is set not by the news but by how much leverage sits on one side.

Inside the exchange: insurance fund and auto-deleveraging

Liquidation does not always mean losing the entire margin. Binance describes a Smart Liquidation protocol: the system first places one large IOC (immediate-or-cancel) order to cover the margin deficit and stops if the remaining collateral is sufficient. That is why large positions are more often liquidated partially and small ones entirely.

If the order is not fully filled and price moves past the bankruptcy price, where collateral is zero, the exchange's insurance fund takes over the position. In volatile markets, Binance writes, the fund takes over at the bankruptcy price, which is worse than the liquidation price. When the fund itself is insufficient, ADL (auto-deleveraging) kicks in: the matching engine force-closes some profitable positions on the opposite side to cover the loss. In October 2025, as FTI Consulting's analysis notes, ADL involuntarily closed profitable shorts, and even some of the best-hedged positions were reduced or closed entirely to keep exchanges solvent.

Hyperliquid uses a different design described in its documentation: positions are first closed with market orders on the book and any remaining collateral stays with the trader; if account equity drops below 2/3 of the maintenance margin, the liquidator vault (part of HLP) takes the whole position and the maintenance margin is not returned. Positions above 100,000 USDC are liquidated in 20% slices with a 30-second cooldown.

Where liquidation numbers come from and why they are understated

Aggregators such as CoinGlass collect public forced-order streams from exchanges. The problem is how those streams work. Binance's documentation for the liquidation stream states that for each symbol only the latest liquidation order within 1000 ms is pushed as a snapshot. In a quiet hour that is nearly everything; in a cascade, when hundreds of positions are liquidated per second, it is a small fraction.

Coin Metrics, which records liquidations from nine exchanges, documents the consequence: after the API change on April 27, 2021 Binance liquidations are missing until May 11 and underreported for roughly four months afterwards, and that data cannot be recovered.

In February 2025 Bybit CEO Ben Zhou said the same thing publicly. As CryptoSlate reported, on a day when CoinGlass showed about $2 billion in market-wide liquidations and $333 million for Bybit, the exchange's internal data put Bybit alone at $2.1 billion, and Zhou estimated the real market total at $8⁠–⁠10 billion. In the same piece K33 Research analyst Vetle Lunde noted that Binance, OKX and Bybit limit WebSocket liquidation reports to one per second. The takeaway is simple: any "liquidated in 24 hours" number is a lower bound, and on a cascade day the real volume can be several times higher.

CoinLab's liquidations page listens to the Binance BTCUSDT stream around the clock and is labeled as a lower-bound estimate for exactly this reason.

How to read a liquidation heatmap

A liquidation heatmap shows not real positions but modeled levels where liquidations would occur, judging by volume and typical leverage. In its guide CoinGlass writes that colors shift from low-intensity purple to high-intensity bright yellow, timeframes run from 12 hours to one year, the levels are "a relative intensity indicator", and actual liquidations may be lower than the heatmap suggests.

How to use it:

1. Bright zones below price are clusters of longs: if price falls there, exchanges will be selling. Bright zones above price are shorts: if price rises there, they will be buying.
2. Compare density above and below price. The imbalance shows which direction has more "fuel", not where price will go.
3. Check market depth: a zone with many liquidations and thin order books means a sharp move.
4. Cross-check funding and open interest. Without them the heatmap is just a picture.

What it looked like on October 12, 2026

As of 4:00 AM ET on October 12, 2026 bitcoin traded near $83,990, up 1.2% over 24 hours (CoinLab summary). The Binance BTCUSDT liquidation stream over the same 24 hours showed $15.3 million of shorts versus $2.9 million of longs across 547 events: the rally was flushing leveraged sellers, not buyers. Binance funding sat near 0.0019% per 8 hours, open interest at 94,135 BTC, about $7.9 billion, up 2.2% on the day, and 58.6% of accounts were long. The Fear and Greed Index read 69, "Greed".

A few days earlier the market had seen the mirror image. According to CoinGlass data reported by Cryptonomist, $1.09 billion in positions was liquidated in the 24 hours to 6:00 AM ET on October 9, $1.05 billion of them longs, while bitcoin fell to $80,350 on Bitstamp. That was a classic news-driven long cascade; October 12 was its smaller reflection, with shorts opened during that drop being force-closed on the bounce.

Common mistakes

• Treating liquidation totals as exact. Because of the one-order-per-second-per-symbol limit they are a floor, especially during cascades.
• Placing a stop exactly at the liquidation level. A stop fills at the last price, liquidation triggers on the mark price, and the liquidation fee pulls the level closer to entry. You need a buffer on both sides.
• Reading the heatmap as a forecast. It is a model built on assumptions about leverage; CoinGlass itself calls the levels relative.
• Forgetting cross margin. Under cross margin a loss on one position eats the collateral of all the others, so the liquidation price "floats".
• Taking short liquidations as a buy signal. Liquidated shorts are purchases that have already happened; afterwards there is less fuel on that side, not more.

FAQ

Is a liquidation the same as a margin call? No. A margin call is a warning that collateral is low, with a chance to top it up. A liquidation is a forced close when there is no time left to add funds; on crypto exchanges it is automatic.

Can you lose more than your margin? Under isolated margin, no more than the amount posted: losses beyond it are covered by the exchange's insurance fund. Under cross margin the entire futures account balance is at risk.

Why are short liquidations buys? A short is a sold contract. To close it the exchange buys the contract back with a market order, and those buys push price up, just as sells from long liquidations push it down.

Where can I watch bitcoin liquidations live? Market-wide totals across exchanges are on CoinGlass; the live Binance BTCUSDT stream is on CoinLab's liquidations page, and the link to funding and OI is in the market summary.

This is not investment advice.