Fill
a.k.a. Filled, Execution
When your order is executed and the trade actually happens.
In plain English
When your order is executed and the trade actually happens.
An order is filled when it is matched and the trade goes through. A partial fill means only part of your size was executed.
Market orders fill quickly but at uncertain prices; limit orders fill only at your price or better, if at all. See fill price and slippage.
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