Overnight Gap
Gap between today's open and yesterday's close
What Overnight Gap Measures
Measures the gap between today's opening price and yesterday's closing price. Overnight gaps are caused by after-hours news, pre-market trading, and overnight sentiment shifts. Large gaps often set the tone for the entire trading day.
Buckets
TradeOdds classifies each trading day into one of these buckets for Overnight Gap. When you run an analysis, matching days must fall in the same bucket (or adjacent buckets if tolerance is set above 0).
How It's Calculated
Today's open minus yesterday's close, expressed as a percentage of yesterday's close. Bucketed into ranges from extreme gap down to extreme gap up.
How to Use Overnight Gap in TradeOdds
When you run an analysis on TradeOdds, Overnight Gap is one of 17 conditions that can be active. If Overnight Gap is toggled on, only historical days where Overnight Gap was in the same bucket as today are included in the match.
For example, if today's Overnight Gap reading puts it in the "Gap Down Crash" bucket, TradeOdds finds all historical days for that stock where Overnight Gap was also classified as "Gap Down Crash" — then shows you what happened next.
Adding more conditions narrows the match (fewer but more specific historical days). Removing conditions widens the match (more historical days but less specific). The right balance depends on whether you want statistical significance (more matches) or precision (fewer but more similar matches).
See Overnight Gap in Action
Run a free analysis on any stock and see how Overnight Gap affects the historical base rate.
Run Free AnalysisNo account required. 5 free analyses per day.
All 17 Market Conditions
Market Trend
SPY position relative to key moving averages
VIX Level
CBOE Volatility Index current reading
VIX Move
Daily VIX percentage change
Month of Year
Calendar month seasonality
Macro Risk
Global risk state from yield curve and economic indicators
Price Move
Daily close-to-close percentage return
Move Intensity
Price move normalized by 14-day ATR
Relative Volume
Today's volume vs. 20-day average
RSI Zone
14-period RSI momentum classification
RSI Slope
3-day directional slope of RSI
Trend Structure
Price alignment with 9-day and 21-day EMA
Analyst Trend
Net analyst sentiment over last 5 days
Earnings Performance
Latest earnings result vs. estimates
Earnings Proximity
Days until next earnings report
Price Streak
Consecutive up or down closing days
Volume Streak
Consecutive days above/below average volume