Liquidation and margin risk
Choose the decision you need to make. Each guide carries the date it was recorded and links to its sources; exchange rules change, so confirm against the official page before acting.
Liquidation and margin riskBTC at 5x, 10x, 20x and 50x: how liquidation risk changesCompare initial margin, a simplified liquidation estimate and adverse price distance for the same BTCUSDT long position at four leverage levels.Liquidation and margin riskHow adding margin changes a BTC long liquidation estimateHold position size constant and compare the simplified liquidation price before and after adding 500 or 1,000 USDT of isolated margin.Liquidation and margin riskWhy DZPTO, Binance and OKX can show different liquidation pricesTroubleshoot mark price, margin mode, maintenance brackets, liquidation fees and account equity before treating two estimates as comparable.Liquidation and margin riskLiquidation follows the mark price: why a wick may not liquidate you, and the reverseA 10× BTC long shows how mark price and last traded price change the distance to liquidation: a wick that does not liquidate, and a position that looks safe but is already gone.
Position sizing and risk budget
Trading cost
Trading costThe full seven-day cost of a 10,000 USDT perpetual positionSeparate opening, closing and seven-day funding costs to build a reproducible range for a fixed notional position.Trading costMaker versus taker cost: finding the execution break-even pointCompare visible fees on a 10,000 USDT round trip, then include non-fill, chasing and slippage costs in the decision.Trading costDelivery futures vs perpetuals: where the holding cost differs, from basis to fundingCompare a delivery future's basis with a perpetual's funding over a 90-day hold: annualised basis, the perpetual's break-even rate, and the risk each contract carries.
Funding rates
Funding ratesLong funding cost over three intervals, seven days and thirty daysCompare holding horizons for a 10,000 USDT position and see why the current positive funding rate is a scenario input, not a monthly forecast.Funding ratesWho pays when perpetual funding is negative: longs or shorts?Use a signed direction coefficient to understand negative funding without mistaking it for an exchange rebate or guaranteed arbitrage.Funding ratesShould you close before funding settlement? Compare four costs firstCompare holding, exiting, reopening and reducing size so avoiding a small funding payment does not create larger execution friction.Funding ratesWhat funding-rate arbitrage really earns: four fees and a leg that can breakA 10,000 USDT spot long plus a perpetual short: break-even days on funding income, capital tied up, and how far price can move before the short leg is liquidated.
Exchange comparison
Exchange comparisonHow to compare Binance and OKX BTC perpetual costs fairlyHold market, notional, execution role and horizon constant so public rates do not create a misleading exchange ranking.Exchange comparisonBinance versus OKX margin models: what must be alignedCompare isolated and cross margin, maintenance brackets and staged reduction to understand why equal leverage does not imply equal liquidation prices.