Immediate or Cancel Orders: Why Partial Fills Happen
Summary
Hollow Point Trading shares a short explainer on immediate-or-cancel orders and why they are not always all-or-nothing. In the example, a 500-share buy limit order at $20 fills 200 shares immediately, while the remaining 300 are canceled—an important detail for understanding order execution.
https://youtu.be/bsbqflDY4KM
Immediate or cancel can leave you with a partial position #Shorts

Immediate or cancel does not mean all or nothing. Imagine a hypothetical buy limit for five hundred shares at twenty dollars. Assume only two hundred shares can execute immediately at that price or better, and the order type is supported. With immediate or cancel, those two hundred shares can fill and the remaining three hundred are canceled. Yo...