position size & liq alert — every coin, every venue

contracts = risk ÷ |entry − stop|: the dollars you'll lose and the price where the idea is wrong. everything else follows — notional is size × entry, margin is notional ÷ leverage, and the bracket turns that margin into a liq price.

sizing the other way round — pick leverage, find out the loss afterwards — sizes for a feeling. $50 of risk is $50 at 2x and at 50x: leverage changes the margin and the liq distance, not the size or the loss — until the liq lands inside the stop and the exchange closes you first.

the division can't tell you whether the stop is in the right place. inside the coin's normal range it's a fee paid to whoever runs the wick; outside it, it's a thesis.

the stop that survives belongs to the coin, not to your conviction. a 2% stop on the largest perp and a 5% stop on a mid-cap are the same trade: at $50 of risk, a $2,500 position and a $1,000 one.

size everything at the same notional instead and your risk per trade is set by whichever coin swung hardest that week. the 24h liquidation column in the markets table above shows where stops are being swept.

leverage caps are per coin too: below the first step BTC allows 40x to 150x depending on the venue, smaller coins less, and the cap steps down as the position grows.

a bracket table is a schedule of size: cross a notional threshold and the maintenance rate steps up while the leverage cap steps down — on the position you already hold, with no order from you. the table below shows where each venue's first step lands.

the split is widest on BNB: at $100,000, hyperliquid charges 5.00% and caps you at 10x, where binance charges 0.60% and allows 50x.

price crosses the step as much as you do: a position that doubles because you were right has doubled its notional, and the rate is re-read at what it's worth now. size with the next step in view.

fees come out of the risk budget first. round-trip taker on every venue here is roughly a tenth of a percent of notional: about 5% of your risk on a 2% stop, a fifth of it on a 0.5% stop.

the stop guarantees an order, not a price. gaps, cascades and thin weekend books fill below the trigger, so a position sized to lose $50 loses $50 plus the slip. size as if the stop slips.

last check: the sized position's liq has to sit at least twice as far as the stop. if it doesn't, lower the leverage until it does, then arm the alarm on that number.