Order Types
Limit and market orders on Scalar's central limit order book.
Overview
Scalar uses a CLOB (Central Limit Order Book) model. All orders are matched offchain by the matching engine, then settled onchain.
Limit Order
Place an order at a specific price. It rests on the order book until filled or cancelled.
- You choose the price (between $0.00 and $10.00) and size.
- If a matching counterparty exists at your price, the order fills immediately.
- If not, your order rests on the book until someone trades against it.
Limit orders give you control over your entry price.
Market Order
Buy or sell at the best available price on the book right now.
- Fills instantly against resting limit orders.
- No price guarantee. You get the best available price at the time of execution.
Market orders prioritize speed over price.
Order Lifecycle
Submit
You submit an order (limit or market) to the matching engine.
Match
The engine matches your order against the best available counterparty, respecting strict price-time priority.
Confirm
Trade confirms instantly. No waiting for block finality.
Settle
The matched trade is submitted to the onchain settlement contract. Your position is recorded onchain.