Linear (USDT) Perpetual PnL
USDT-margined BTC futures. Position and PnL are denominated in USDT.
USDT
USDT
BTC
x
Linear math:
PnL(USDT) = Qty BTC × (Exit − Entry) for long, reversed for short.
BTC equivalent uses the exit price. Margin = (Qty × Entry) / Leverage.