Practice sats only. No real deposits. Alice and Bob trade inside this browser tab. No external liquidity.
₿ BTC/USD Inverse
Scenario price$60,000.00
MarginIsolated · 1–5×
SettlementPractice SATS
Lazer’s independent
derivatives test environment.
BTC/USD · Scenario
0 price stepsYour scenario history. Not live market data.
Move the scenario price to build a history.
Every point comes from your test session.
Scenario controls
Move the price to test P&L and liquidation.
Order book (BTC/USD)
Price USDContractsTrader
No resting orders
Place an order, then switch traders to take the other side.
60,000Scenario price
Price priority, then time priority.
Orders from the same trader do not match.
Place order
Alice · Limit order
1 contract = $1 of BTC/USD exposure.
No match, no position. Execution uses the resting order’s price; required sats may change.
No open positions
Place an order, then switch to Bob to take the other side.