liqsiren

why your chart missed the price that liquidated you

your chart probably showed last price while the venue monitored mark price; in a Binance BTC example entered at $97,400 with 20x leverage, $10,000 notional and 0.4% MMR, estimated long liq is $92,919.60.

how it's computed

funding, fees and cross-margin PnL can move the live trigger after entry.

want the alarm instead of the arithmetic? arm the liquidation price alert — it screams before price reaches your liq. free, no signup.

the short version

  • check which price your chart plots: liquidation runs on mark price, so a last-price candle that never reached $92,919.60 proves nothing on its own.
  • recheck the liq you copied at entry: at 20x a $10 taker round trip is already 2% of the $500 margin, and funding owed moves it too.
  • to reconstruct it, pull the account ledger and mark-price history for the same interval — not a last-price screenshot — and compare mark with the live liq.

why was i liquidated before the chart reached my liq price?

check which price your chart plots — the venue liquidates on mark — and whether fees or funding moved your liq.

a 20x Binance BTC long, liquidated on mark while the last-price candles stay above
last-price lowliq $92,919.60mark-price lowcandles: last price · line: mark price
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liquidation is tied to the venue’s mark price, not necessarily the last traded price displayed by your candle chart. mark and last can separate during a wick, thin book or fast taker flow. if mark reaches the live liquidation threshold while last remains above it, a long can be liquidated even though the last-price candle never prints the liquidation number you recorded.

the inverse is also possible. a last-price wick can trade below a long position’s displayed liq while mark remains above the threshold, leaving the position open. the candle low is therefore not standalone proof that liquidation should or should not have occurred. first identify the chart’s price series, then compare it with venue mark data for the same interval.

the number copied at entry may also be stale by the time the event occurs. funding owed and fees debited from margin reduce the equity supporting the position. under cross margin, unrealised PnL from other positions changes the shared margin balance as well. each mechanism can move the live liq without changing the entry shown in your trade history.

which price actually controls the liquidation trigger?

liquidation watches mark; check your stop’s trigger type on the account, since a last-price stop can stay untriggered while mark crosses liq.

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mark price controls the liquidation check on Binance and Bybit perpetual futures covered here. last price is the latest taker fill, while mark is the venue’s reference price for unrealised PnL and liquidation. the two can print different levels at the same moment, so a last-price screenshot cannot reconstruct the trigger by itself.

conditional-order trigger type is selectable and varies by product and interface. check the trigger basis on the account rather than assuming a stop watched the same price as liquidation. a stop keyed to last can remain untriggered while mark crosses liq, or trigger during a last-price wick that never takes mark to the liquidation threshold.

a clean reconstruction therefore needs separate mark and last series. trade candles establish what printed on the book; mark history establishes what the liquidation engine observed. venue documentation explains the mechanism, but it does not make an old last-price candle interchangeable with the corresponding mark series.

show the table
price fields used in a liquidation reconstruction
price fieldwhat it recordsforensic use
mark pricevenue reference pricecompare with the live liq threshold
last pricelatest taker fillcompare with the trade-chart wick
conditional trigger priceuser-selected trigger basischeck whether a stop watched mark or another selectable price type
liquidation pricelive margin thresholdrebuild with bracket, equity, funding and fees

Binance and Bybit mark-price and liquidation documentation, verified 2026-09-19.

how does one Binance BTC position reach its liquidation price?

at 20x a $97,400 Binance BTC long has $4,480.40 of room (4.6%); at 100x just $584.40 — keep your stop inside it.

room between a $97,400 entry and the Binance BTC long liq
5x19.6%10x9.6%20x4.6%50x1.6%100x0.6%
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take a Binance BTC isolated long with a $97,400 worked-example entry, $10,000 notional and 20x leverage. the initial margin is $10,000 ÷ 20 = $500. this notional sits inside the first BTC bracket, which runs through $300,000 with 0.4% MMR and maximum leverage of 150x.

the isolated approximation is liq = entry × (1 − 1/leverage + MMR). inserting the position gives $97,400 × (1 − 1/20 + 0.004) = $92,919.60. distance from entry is $97,400 − $92,919.60 = $4,480.40, or 4.6%. the 0.4% MMR pulls the threshold inside the naive 5% leverage distance.

the same $10,000 Binance BTC example shows how quickly room contracts as leverage rises. estimated long distance falls from $19,090.40 at 5x to $584.40 at 100x. every output remains an estimate — exchanges compute exact liq from live margin; always double-check on your venue.

show the table
Binance BTC isolated-long estimates from a $97,400 entry and $10,000 notional
leverageestimated liqdistance from entrydistance percentage
5x$78,309.60$19,090.4019.6%
10x$88,049.60$9,350.409.6%
20x$92,919.60$4,480.404.6%
25x$93,893.60$3,506.403.6%
50x$95,841.60$1,558.401.6%
100x$96,815.60$584.400.6%

liqsiren worked examples using Binance BTC brackets verified 2026-09-19; entry is the worked example, not a live quote.

how do fees and funding move the displayed liq after entry?

a $10,000 Binance taker round trip costs $10, 2% of the $500 margin; owed funding eats equity and moves liq toward mark.

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the isolated formula above omits exchange fee and funding accruals since entry. Binance taker fee in the facts pack is 0.05%; applied to $10,000 notional, that is $10,000 × 0.05% = $5 for one taker fill. an entry-and-exit taker round trip is 0.1%, or $10 on the same unchanged notional.

against the example’s $500 initial margin, that $10 round trip equals 2% of margin. actual close notional can differ from entry notional, and liquidation-specific charges are venue- and tier-dependent. those charges consume remaining equity rather than creating extra chart distance. exact liquidation-fee treatment must be taken from the account record, not inferred from the candle low.

Binance and Bybit use an 8-hour funding interval in this facts pack. when funding is owed and debited from available margin, the position has less equity and its live liq can move toward mark. funding received can move equity the other way. the applicable rate and payment direction must come from the position’s own funding ledger rather than a later rate snapshot.

show the table
taker-fee drag at the worked position’s 20x leverage
venuetaker feetaker round tripround trip as percentage of margin
Binance0.05%0.1%2%
Bybit0.055%0.11%2.2%

liqsiren fee-drag inputs for Binance and Bybit, as of 2026-09-22.

can the maintenance-margin bracket change the number?

recheck MMR whenever size changes: BTC is 0.4% on Binance and 0.33% on Bybit up to $300,000, then 0.5% on both.

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yes. MMR is selected from the position’s notional bracket, so the same entry and leverage can produce a different estimated liq when notional crosses a tier. for Binance BTC, MMR rises from 0.4% through $300,000 to 0.5% through $800,000, then 0.65% through $3,000,000. higher listed brackets reach 1% and 2%.

Bybit BTC begins at 0.33% through $300,000, then moves to 0.5% through $2,000,000. the next listed thresholds are $2,600,000 at 0.56%, $3,200,000 at 0.63% and $3,800,000 at 0.67%. this is why copying an MMR from a smaller position can misstate a larger position’s liquidation threshold.

only the first 5 brackets are represented here. for notionals above the last listed bracket, the calculator fallback uses that last bracket and can slightly underestimate MMR. bracket checks matter whenever size changes, partial liquidation changes notional, or the venue updates its risk limits.

show the table
first 5 BTC USDT-M isolated maintenance-margin brackets
venue and bracketnotional up toMMRmaximum leverage
Binance 1$300,0000.4%150x
Binance 2$800,0000.5%100x
Binance 3$3,000,0000.65%75x
Binance 4$12,000,0001%50x
Binance 5$70,000,0002%25x
Bybit 1$300,0000.33%150x
Bybit 2$2,000,0000.5%100x
Bybit 3$2,600,0000.56%90x
Bybit 4$3,200,0000.63%80x
Bybit 5$3,800,0000.67%75x

Binance bracket data and Bybit v5 market risk-limit data, verified 2026-09-19.

why can the candle cross liq without causing liquidation?

compare mark history, not the candle: a last-price low under your liq means the book traded there, not that mark did.

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a candle only answers the question for its own price series. if the chart uses last price, its low records the lowest taker fill during that interval. a long can show a last-price low below the displayed liq while mark stays above the live threshold. in that case, the wick crossed on the book but not in the liquidation engine’s reference series.

the complaint reverses when mark moves through the live threshold while last does not print there. your last-price chart can show every candle above the copied liq even though the venue’s mark series crossed it. a delayed screenshot adds another mismatch because the liq may already have drifted through funding, fees or cross-margin equity changes.

timeframe compression can hide sequence as well. a candle gives an interval’s open, high, low and close, not the order in which mark, fills, funding debits and margin changes occurred. event-level account records and mark history are therefore more useful than enlarging a last-price candle after the fact.

how do i reconstruct what happened to my position?

start from the venue’s liquidation record and ledger, rebuild the live liq with every fee and funding entry, then compare with mark.

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start with the venue’s liquidation record and account ledger, not the chart screenshot. preserve the displayed liq you recorded at entry, but treat it as one state rather than the final trigger. the reconstruction needs entry, side, leverage, notional, margin mode, bracket, MMR and every equity-changing event before liquidation.

then align the account timeline with mark and last data from the same venue. public forced-liquidation feeds are incomplete, so absence from an aggregator does not prove that the venue did not liquidate the position. the decisive comparison is the account’s live margin state against venue mark, with the calculator serving as an isolated-margin approximation rather than an exchange ledger.

  1. record the position’s entry, side, leverage, notional and isolated or cross margin mode.
  2. identify the notional bracket and MMR active when liquidation occurred.
  3. collect mark-price history and separate it from the last-price candle series.
  4. check funding entries, trading fees and any venue-specific liquidation charge in the account ledger.
  5. for cross margin, add the unrealised PnL and margin effects of every other open position.
  6. compare the reconstructed live liq with mark at the event timestamp, then reconcile the forced close fill separately.

what this page adds that the others don't

show all 7
  • the Binance BTC worked example reaches an estimated $92,919.60 long liq from a $97,400 entry at 20x with 0.4% MMR.
  • the same $10,000 Binance BTC position has $4,480.40 of long-side room at 20x but only $584.40 at 100x.
  • a last-price candle can cross liq without liquidation when mark remains outside the live threshold.
  • a mark-price crossing can liquidate the position even when the last-price chart never prints the copied liq.
  • Binance charges 0.05% taker in the facts pack, making a $10,000 taker fill $5 before any venue-specific liquidation charge.
  • Bybit BTC starts at 0.33% MMR through $300,000, while Binance BTC starts at 0.4% through the same notional threshold.
  • an 8-hour funding debit or cross-margin unrealised PnL can move the live liq after the position opens.

faq

can i be liquidated if last price never touched my liq?

yes. liquidation is checked against mark price, while your chart may display last price. if mark crosses the live threshold and last remains outside it, the position can be liquidated without the last-price candle printing the liq you copied. fees, funding and cross-margin PnL may also have moved that threshold after entry.

why did price wick below my long liq but i stayed open?

the wick may have been a last-price print while mark remained above your live liquidation threshold. a taker fill on the book does not automatically mean the venue’s mark reached the same level. confirm which price series the chart used and compare it with mark history for the identical interval.

does the liquidation price stay fixed after i open?

no. funding owed, fees debited from margin and position changes can alter the equity supporting your trade. under cross margin, unrealised PnL from other positions also affects the shared balance. notional changes can move the position into another MMR bracket, producing another change in the live liq.

is the calculator’s liquidation price exact?

no. it is an isolated-margin approximation using entry, leverage and the applicable MMR bracket. it ignores unrealised PnL on other cross-margin positions and the exchange’s own fee and funding accruals since entry. estimate — exchanges compute exact liq from live margin; always double-check on your venue.

how much did the forced close fee move my liquidation?

the exact amount cannot be recovered from the candle alone. Binance taker fee in this facts pack is 0.05% and Bybit is 0.055%, but liquidation-specific charges and their treatment are venue- and tier-dependent. use the account ledger, close notional and recorded charges to quantify what was taken from remaining equity.

sources

  1. Binance Futures liquidation and maintenance margin documentation — checked 2026-09-19
  2. Binance mark price and price index — checked 2026-09-19
  3. Bybit v5 market risk-limit endpoint (risk limit / maintenance margin tiers) — checked 2026-09-19
  4. Bybit liquidation process documentation — checked 2026-09-19
  5. Bybit mark price documentation — checked 2026-09-19
  6. liqsiren margin-tier table, verified against both venues — checked 2026-09-19

methodology, coverage gaps and the resolved prediction scorecard live on the would-have-alerted audit. corrections: @ehivedev on Telegram.