Reduce-Only Order

    Reduce-Only OrderOpen long 0.10 BTCReduce-only sell 0.05 → position 0.05Reduce-only sell 0.05 → position 0.00Reduce-only sell 0.05 → rejectedcan only shrink, never open or flip

    An order flagged so it can only shrink or close an existing position, never open or increase one. If it would add exposure, the exchange rejects or trims it. It is the standard flag for exits.

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