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Leverage controls how much collateral you must post to open a perpetual-futures position; it does not reduce the position’s exposure to price movements. Initial margin is the opening collateral, maintenance margin is the minimum required to keep the position open, and liquidation occurs when the venue’s mark-price calculation finds that available collateral has fallen below its maintenance requirement. The exact liquidation price depends on the contract, position size, risk tier, margin mode, mark price, unrealized and realized profit or loss, and—under cross margin—other positions and eligible account balances.
What leverage means in a perpetual-futures position
Leverage is the ratio between a position’s notional value and the initial margin committed to it. A 10x position gives you 10 units of market exposure for each unit of initial margin, subject to the exchange’s contract rules and risk limits. It changes the amount you must deposit at entry; it does not make a losing price move smaller.
For a USDT-margined perpetual, Bybit’s USDT perpetual FAQ states the basic relationship as:
Initial margin = position value ÷ leveragePosition value = quantity × mark price
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For example, a 10,000 USDT notional position at 10x leverage requires 1,000 USDT of initial margin before fees and any additional balance the venue requires. At 20x, the opening requirement for that same notional is 500 USDT. The position still gains or loses as though it were worth 10,000 USDT, not 500 or 1,000 USDT.
Leverage is therefore a collateral setting, not a loss limit. A 1% adverse move on a 10,000 USDT position changes unrealized PnL by about 100 USDT before fees and funding, regardless of whether the opening leverage was 5x, 10x, or 20x. Higher leverage leaves less initial collateral to absorb that loss and generally places liquidation closer to the entry price.
Initial margin and maintenance margin are different
| Requirement | What it does | What determines it |
|---|---|---|
| Initial margin | Collateral needed to open the chosen notional position | Position value, selected leverage, contract rules, fees and sometimes order type |
| Maintenance margin | Minimum margin that must remain for the position to stay open | Contract, notional risk tier, maintenance rate and maintenance amount, plus account and position PnL |
Maintenance margin is not simply a fixed percentage of the original deposit. Binance describes liquidation as occurring when collateral—initial collateral plus realized and unrealized PnL—falls below the applicable maintenance margin. A position can therefore approach liquidation even though the trader has not lost a particular percentage of the initial margin.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteExchanges commonly use risk tiers. As notional value increases, a position may move into a tier with a larger maintenance requirement and a lower maximum leverage. The maintenance calculation can include both a rate and a fixed maintenance amount. Fees, funding, realized PnL and other venue-specific adjustments can also affect the displayed risk figures.
What a liquidation price actually represents
The liquidation price is the mark-price level at which the exchange’s risk engine determines that the position or account no longer satisfies its maintenance requirement. It is an operational threshold, not a universal market price and not necessarily the last traded price on the order book.
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Mark price, not just the last trade
Perpetual venues use a mark price to reduce the chance that a brief, isolated order-book trade triggers liquidation. The mark-price construction is venue-specific. Because liquidation is tied to that reference, the displayed threshold can differ from the price shown on a chart or from the most recent trade.
Inputs used by the calculation
Depending on the contract and account mode, the calculation can include:
- Long or short direction.
- Entry price and current mark price.
- Position quantity and resulting notional value.
- Isolated or cross-margin mode.
- Wallet or position-assigned balance.
- Realized and unrealized PnL.
- The maintenance-margin rate and maintenance amount for the current risk tier.
- Other positions and eligible collateral when cross margin is used.
Binance’s USDⓈ-M liquidation-price guide explicitly treats cross-margin calculations as including wallet balance, maintenance margin and unrealized PnL from other positions. Its isolated calculation uses the balance assigned to that position and sets other-position terms to zero. The precise equation and rounding rules remain exchange-specific.
Why “notional divided by leverage” is not a liquidation formula
Dividing position value by leverage calculates an opening-margin requirement. It does not account for the collateral remaining after PnL, the maintenance threshold, risk-tier adjustments, or other positions. A spreadsheet that uses only that division can produce a plausible-looking number while being materially wrong about liquidation.
Isolated margin versus cross margin
| Feature | Isolated margin | Cross margin |
|---|---|---|
| Collateral considered | Balance assigned to the individual position | Eligible account balance and positions under the venue’s cross rules |
| Risk containment | A losing position normally cannot consume collateral assigned to unrelated isolated positions | One position can draw on shared collateral, linking risks across the account |
| Liquidation calculation | Uses that position’s balance and PnL; other-position terms are generally excluded | Includes account-level balances and the effect of other positions |
| Typical trade-off | More predictable maximum loss for the assigned margin, but less buffer | More shared buffer, but a broader account-level liquidation risk |
With isolated margin, you choose how much collateral is allocated to a position. Bybit states that isolated long and short positions may be liquidated independently. Some venues also offer auto-margin replenishment: when enabled, available account balance can be transferred to an isolated position after a trigger. That feature changes the practical loss boundary, so confirm whether it is enabled before relying on an isolated-risk assumption.
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Cross margin can postpone liquidation because profitable positions or unused eligible balance may support a losing position. It can also make a single trade threaten the rest of the account. Eligible collateral, treatment of unrealized PnL and netting rules vary by venue; never assume that every asset in the wallet is available.
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Bybit documents an additional cross-mode hedge rule: in hedge mode it first closes fully hedged positions at mark price to release margin and may continue with partially hedged positions if account risk remains unresolved. This is a Bybit procedure, not a general rule for all derivatives venues.
Worked maintenance-margin example
Binance’s “How to Calculate Liquidation Price of USDⓈ-M Futures Contracts” guide, published June 11, 2020 and updated December 31, 2025, illustrates the maintenance-margin calculation with a BTCUSDT example. The position contains 10 BTC and the mark price is 26,000 USDT, producing:
Notional = 10 BTC × 26,000 USDT = 260,000 USDT
The guide places this example in margin tier 3 and uses a 1% maintenance rate and a 1,300 USDT maintenance amount. Its illustrated formula is:
Maintenance margin = position notional × maintenance-margin rate − maintenance amount
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Using those example inputs:
260,000 × 1% − 1,300 = 1,300 USDT
The result is 1,300 USDT of maintenance margin. These numbers describe the guide’s worked example; they are not a current universal BTCUSDT schedule. A different contract, notional tier, account mode or later exchange update can produce a different rate, amount and liquidation price.
The example demonstrates why a liquidation calculation must combine the maintenance requirement with remaining collateral and unrealized PnL. It is not enough to know that the position was opened at a particular leverage.
Why the displayed liquidation price can move
Position size or notional changes
Adding contracts changes both exposure and, potentially, the risk tier. Reducing size can lower the maintenance requirement. If the new notional crosses a tier boundary, the maintenance rate, maintenance amount or maximum permitted leverage may change abruptly rather than gradually.
Margin is added or removed
Adding collateral generally gives a position more room before its maintenance threshold is reached; removing collateral does the opposite. In cross mode, transferring funds, closing another position or changing which assets are eligible can alter the account-level calculation.
PnL, funding and fees change available collateral
Realized losses reduce available collateral immediately. Unrealized PnL changes as the mark price changes, and trading fees or periodic funding payments can further reduce the balance supporting the position. The displayed liquidation price can therefore change even when the contract quantity is unchanged.
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Risk-tier parameters are updated
Binance’s September 25, 2026 announcement on USDⓈ-M perpetual margin tiers lists updated limits and maintenance rates for named contracts and notes that existing positions are affected. Such updates show why an old tier table should not be treated as a current universal schedule. Check the contract’s live risk-limit table and the liquidation value shown in your account.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to check your real liquidation risk
- Identify the exact contract. Record the symbol, quote currency, contract type and whether the position is one-way or hedge mode.
- Read the contract specification. Find the current maximum leverage by notional tier, maintenance rate, maintenance amount, mark-price method and eligible collateral rules.
- Confirm margin mode. Verify whether the position is isolated or cross and, for isolated mode, how much balance is assigned. Check whether automatic margin replenishment is active.
- Use the account’s displayed mark price and liquidation price. Do not substitute a chart’s last-traded price unless the venue explicitly says it uses that price for liquidation.
- Stress-test the position. Consider a move beyond the displayed liquidation price, funding and fee debits, a tier change after resizing, and the effect of other positions in cross mode.
- Recheck after every material change. Recalculate after adding or removing margin, changing size or leverage, transferring collateral, closing another position, or receiving a risk-parameter notice.
Practical ways to reduce liquidation risk
- Use a smaller notional position instead of relying on a higher leverage setting to reduce opening collateral.
- Keep a deliberate buffer above the displayed maintenance requirement; do not treat the liquidation price as a stop-loss.
- Place a separate stop order before liquidation when the venue and market conditions make execution feasible. A stop is not guaranteed to fill during gaps or extreme volatility.
- Understand whether adding margin can push the position into another risk tier or change the account’s cross exposure.
- Monitor mark price, not only the last-trade chart.
- In cross mode, account for correlated positions: several trades can lose together even when each appears adequately margined alone.
- Check funding, fee and collateral-eligibility rules so the buffer is not overstated.
No risk-control method eliminates liquidation risk. A stop order, extra collateral or lower leverage can fail to protect the account if the market moves through prices too quickly or if the venue’s rules differ from your assumptions.
Questions to ask when comparing perpetual-futures setups
Leverage labels are not enough to compare venues or account configurations. Check these six items for the exact contract and date:
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- Margin mode: Are isolated and cross available, and which balances count under each?
- Notional tiers: What is the maximum leverage at each position size?
- Maintenance schedule: What rate and maintenance amount apply at the current tier?
- Hedge treatment: Are long and short legs independent, netted, or subject to special liquidation sequencing?
- Risk procedures: How do auto-margin replenishment, partial liquidation, position reduction and account-level liquidation work?
These operational details determine the real risk more than the largest leverage number shown in a marketing panel. Always use the live contract page and the risk information in your own account, because schedules and procedures can change.
Common misconceptions
“10x leverage means liquidation after a 10% loss.”
Not necessarily. Liquidation depends on maintenance margin, fees, PnL, mark price, risk tier and margin mode. The threshold can be closer or farther than a simple percentage rule suggests.
“My liquidation price is fixed when I open the trade.”
It can move as collateral, size, PnL, funding, other positions and tier parameters change.
“Cross margin is automatically safer.”
It may provide more shared buffer, but it also connects positions to the wider account. A loss that would have consumed only one isolated allocation can become an account-level event.
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The maximum is a limit, not a recommendation. Higher leverage reduces initial margin while leaving the notional exposure unchanged, so less collateral is available to absorb adverse movement.
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