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Why tight stop-losses often hurt investors

The practice can unintentionally undermine investments’ long-term performance by truncating exposure and amplifying behavioural frictions

    • Viewed in isolation, tight stop-losses appear prudent. But what looks like good risk control at the trade level can become opportunity destruction at the portfolio level.
    • Viewed in isolation, tight stop-losses appear prudent. But what looks like good risk control at the trade level can become opportunity destruction at the portfolio level. PHOTO: EPA
    Published Tue, Mar 3, 2026 · 04:42 PM

    ASK investors how they manage risk, and many will give the same answer: tight stop-losses.

    Tight stop-losses are widely viewed as a cornerstone of disciplined risk management, but they can sometimes work against investors’ long-term objectives.

    A stop-loss is a predefined rule that forces the exit of an investment position when its price moves against the investor by a specified amount. Its primary purpose is to limit downside losses on an individual position without requiring continuous monitoring.

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