margin call & liq alert — every coin, every venue

a stock margin call is a warning with a deadline: deposit by friday or we sell. a perp never asks — when equity drops under maintenance margin the engine force-closes into the book, at entry × (1 − 1/leverage + mmr) for a long. a separate 'margin call price' for perps is the liquidation price sold twice.

the bracket is the one term you don't choose, and it follows notional: 0.33% to 5.00% maintenance across the coins here. same 20x long, different venue, different call — the table below prices it.

on isolated margin the position's own margin is the whole buffer, so entry, leverage and bracket fix the call — every number on these pages is that case.

on cross the wallet backs the position, so the line moves with your balance, your other positions and any deposit, and no public page can compute it. read the isolated number as the closest the engine could reach you — the floor under your room, not the room.

and a cross call walks through the wallet, including the positions you were right about. keep more room than the isolated number asks for.

before the call you can close, add margin, or hold on purpose, and only adding margin moves the line. doubling the margin halves effective leverage and doubles the 1/leverage half of the room: at 20x that adds 5.00% of notional. the table prices it per venue.

the venue is free room you pick before the trade: at $100,000 the widest split is BNB, 0.60% on binance against 5.00% on hyperliquid — 4.40% of entry, $4,400 on this size, and it scales with the position.

adding margin postpones, it doesn't prevent: a cascade that reaches the old call often reaches the new one, and you've paid more to stand in it. decide before the warning, not during it.

close: before the call you exit at a real price; at the call you fill into the wick, plus the venue's liquidation fee. the closer to the line, the worse the exit.

add margin: on the BTC example, doubling the $5,000 posted moves the call from $80,127 to $75,925 — and puts twice as much in front of the wick if it gets there anyway. make it a decision with a number attached, not a deposit into a loss you can't accept.

hold, knowingly: fine when the wick is part of the plan and the size was built for it. what isn't a plan is finding out at the fill — the alert below reaches you while all three are still open. free tier, no signup.