MetricBeginner
Commission
A fixed or per-lot fee charged by a broker for executing a trade, often used in A-book/NDD models as an alternative to spread markup.
Last updated: February 1, 2026
1
The broker charges a fixed fee per lot traded (e.g., $3.50 per lot per side).
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Commission is typically separate from the spread, making total cost transparent.
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The fee is deducted from the client's account at the time of trade execution.
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Commission structures may vary by account type, instrument, or volume tier.
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In NDD/A-book models, commission is the primary revenue source, replacing spread markup.