Trading

Fill: Definition

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Simple Definition

When your order to buy or sell is completed.

Why It Matters

A 'fill' confirms your trade actually happened. Market orders usually fill instantly at whatever price is available. Limit orders only fill if the price reaches your target - they might partially fill or not fill at all. Knowing whether you got filled (and at what price) is essential before making your next move.

Key Points

  • Partial fill: Only some of your shares were bought/sold - common with large orders or limit orders
  • Fill price: The actual price you paid or received - may differ from the price you saw when ordering
  • GTC (Good Til Canceled) orders can take days to fill if your limit price isn't reached

Related Terms

Common Questions

When your order to buy or sell is completed. A 'fill' confirms your trade actually happened. Market orders usually fill instantly at whatever price is available.

A 'fill' confirms your trade actually happened. Market orders usually fill instantly at whatever price is available. Limit orders only fill if the price reaches your target - they might partially fill or not fill at all. Knowing whether you got filled (and at what price) is essential before making your next move.

Partial fill: Only some of your shares were bought/sold - common with large orders or limit orders

Fill price: The actual price you paid or received - may differ from the price you saw when ordering

GTC (Good Til Canceled) orders can take days to fill if your limit price isn't reached