Try it first. Then decide.
Two exercises, no login. Use reproducible examples to explore matching and order parameters.
| Ask price / USDT | Available | Filled now |
|---|---|---|
| 100.00 | 1 | 1 |
| 101.00 | 1.5 | 0 |
| 103.00 | 2 | 0 |
Only price and visible quantity are modelled. Queue priority, fees, slippage protection and order filters are excluded.
Partially filled
1 / 3Average fill 100 USDT; 2 units remain. The remainder waits. A limit price does not guarantee a fill.
Three changes. One clearer limit order.
- Keep quantity at 3 and set the limit to 99: no sell price qualifies, so nothing fills.
- Change it to 100.5: only the 100 level qualifies, filling 1 unit.
- Change it to 103: three levels supply 3 units at an average price of 101 USDT.
This is arithmetic on a fixed order book, not a simulation of real queues, gaps or every exchange protection.
Read the related guide →Order parameter checker
Enter rules you have verified to check notional value and increments. Prefilled rules are hypothetical and do not describe any trading pair.
- Quantity is not a multiple of the quantity increment.
Notional value: 10.55 USDT
Checks only minimum notional, price increment and quantity increment. It excludes quantity bounds, price ranges, balances, order limits and market-order-specific filters.
Official source ↗Read the practice notes
What does the desk explain?
A price being reached does not establish enough available quantity. Change the buy limit while keeping the sample book fixed to see the separate effect of each constraint.
Why three levels?
They are enough for a worked example. Beyond the visible depth, the desk does not invent a fill price. It has no market-data connection.
What is the remainder?
For a limit order it is the portion not matched in this example. In market mode it means the sample cannot price the excess; it does not predict the real exchange’s final market-order status.
What does the checker test?
Enter the price, quantity and rule values to check minimum value, price tick and quantity step. Results update when you change an input.
What remains unchecked?
Balance, account eligibility, symbol status, dynamic price filters, market-order rules and fees. This desk never submits an order.