Partial Fill Review Workflow for Futures Traders
Last verified: 2026-06-04 PDT
A partial fill happens when only part of a trader's order gets executed. If a trader places an order for four contracts and only two fill, the position is not the same as the plan. The trade now has different size, different risk, and often a different management problem.
What a partial fill means in plain English
A partial fill happens when only part of a trader's order gets executed. If a trader places an order for four contracts and only two fill, the position is not the same as the plan. The trade now has different size, different risk, and often a different management problem.
Why partial fills deserve their own review
Most traders review the chart and skip the order mechanics. That misses the real lesson. A partial fill can show that liquidity was thin, the limit price was too passive, the market moved too fast, or the trader changed the order under pressure. The review should separate market behavior from trader behavior.
The simple review workflow
Start with intent: what order type, size, level, and invalidation did the trader plan before clicking? Then record the actual fill: filled size, average price, unfilled size, time in market, and whether the trader chased the rest. Finally, compare planned risk with actual risk after the partial fill.
Math example
Suppose a trader plans four MNQ contracts with a 20-point invalidation. Before fees and slippage, that is roughly $160 of planned risk because MNQ is $2 per point. If only two contracts fill, the initial risk is closer to $80. If the trader chases the remaining two contracts 10 points higher, the average entry changes and the risk profile may no longer match the original idea.
Common mistakes
The first mistake is pretending a partial position is the same as the planned position. The second is panic-clicking to complete the size after price has moved. The third is judging the trade only by the final P&L instead of reviewing whether the fill process stayed inside the trader's execution rules.
Bucko workflow
Bucko fits this as an education, journaling, scenario-analysis, guardrail, and review workflow. A trader can tag partial fills, compare planned size with filled size, record slippage, attach screenshots, and build an audit trail around execution quality. Bucko is not a trade caller; it helps the trader inspect their own process.