Gap Down

An opening price significantly lower than the previous session's closing price, leaving a gap on the chart where no trading occurred.

Gap downs are the bearish mirror of gap ups — a security opens meaningfully lower than its prior close due to negative news or sentiment shift overnight. Common causes include earnings misses, guidance cuts, analyst downgrades, adverse regulatory decisions, geopolitical shocks, or sector-wide contagion from a related company's bad news.

For holders of long positions, a significant gap down is particularly painful because normal stop-loss orders may not protect against it — if the stock closes at $50 and opens the next morning at $38, a stop-loss at $47 executes at $38 (or wherever the first trade occurs), not at $47. This "gap risk" is one reason traders managing overnight positions use options or position size reduction to limit exposure.

For short sellers, gap downs are potentially very profitable if they predicted the negative news. Gap downs on earnings misses are often among the sharpest and fastest moves in the market. Whether a gap-down stock then continues declining ("gap and go" lower) or recovers and fills the gap depends on whether the negative news represents a temporary setback or a fundamental change in the business outlook.

This definition is for informational and educational purposes only. Nothing on Finance Compass constitutes financial, investment, or trading advice. Always conduct your own research and consult a qualified professional before making financial decisions.