
Kraken: cancelled futures limit orders can still fill
- —Kraken expanded Maker Protection to 61 additional perpetual contracts on Oct. 8
- —The hold window is 20 milliseconds on selected futures markets
- —A cancel inside the window converts the order to immediate-or-cancel, but it can still fill
- —Top-10 liquid linear perpetuals and spot trading are excluded from the rule
Why it matters: Automated traders must reconcile both the cancellation acknowledgment and the execution response, since a successful cancel can coexist with a later fill.
Source: CryptoSlate