gap higher

When a security opens at a price significantly higher than its previous day's close, leaving a blank space or 'gap' on a price chart.

A gap higher occurs when a security opens at a price significantly above the prior trading session's high or close, leaving a blank space on a price chart where no trading activity took place. This phenomenon is typically triggered by an overnight or weekend catalyst, such as an unexpected earnings beat, a positive guidance revision, a major macroeconomic report, or a high-profile merger announcement. This news creates a sudden imbalance of buy orders that market makers must match at a higher opening price. Investors and technical analysts closely monitor gaps because they represent a sudden shift in market sentiment and momentum. A gap higher can signal the start of a strong new bullish trend or the acceleration of an existing one. Conversely, traders also watch to see if the price eventually reverses to "fill the gap" by trading back down to the pre-gap price level, which can act as a key support area. While a gap higher indicates strong buying pressure, retail investors should exercise caution. Buying immediately after a large gap higher can expose an investor to "gap fades," where early profit-taking quickly drives the price back down. Distinguishing between a runaway gap (which signals continued strength) and an exhaustion gap (which signals the end of a trend) is a common challenge in technical analysis.

On Monday, Company XYZ closes at $50.00. Overnight, the company announces a surprise regulatory approval for its lead product. On Tuesday morning, the stock bypasses all prices between $50.00 and $54.50, opening for regular trading at $55.00. The $5.00 jump where no shares changed hands is a gap higher.