1sRe-pricing cadence
Nativeon-chainMatching engine
0% makerFee when at top
May 25Live since 2026
What a chase order does
- It is a limit order with autopilot.
- The order monitors the best bid (for buys) or best ask (for sells).
- Every second the price refreshes to stay at (or just behind) the top of the book.
- You set a price ceiling/floor so it does not chase forever.
- You set a quantity to fill.
Why on-chain matters
- On most DEXes, smart orders run on the client or a relayer. If your machine sleeps, your order stops chasing.
- On Aster the chase logic is the matching engine. The order keeps tracking even if you close your browser.
- 0% maker fee environment: chasing the top of the book typically means you are providing liquidity, which is free.
When to use it
- You want to be filled but you do not want to pay taker fees.
- The market is moving and a static limit will be left behind.
- You want to be at the top of the book without baby-sitting the order.
Configurable safety controls
- Price band. Maximum chase distance from your entry price.
- Time-to-live. Auto-cancel if not filled within N minutes.
- Quantity cap and partial-fill behavior.
Limitations
- Chase orders do not work in Shield Mode (the order needs to read the book, encrypted orders cannot).
- In thin markets the order can sit at the top with very small competing orders ahead of it, leading to slow fills.
Further reading
Last reviewed May 2026.
Corrections → @aster_scan