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Monday was an 80% up volume session among S&P500 components, the fourth consecutive 80%+ up volume day. It’s unusual to see that tight a cluster of 80% days. A pattern I’ve noted previously finds a short-term bullish edge when four 80% up volume days occur within an eight-day time frame. Over the last 30 occurrences since 2011, 25 (83%) led to a higher S&P eight sessions later. That’s a decent edge over the 63% random odds, but noteworthy that it’s been on a roll in recent years. Since 2012, 23 out of 26 (88%) led to a higher SPX eight sessions later…

Four 80% Up Volume Days (SPX components) in Eight Sessions
12/27/21… SPX ??? eight sessions later
11/16/20… SPX +0.3% eight sessions later
10/07/20… SPX +0.2% eight sessions later
06/03/20… SPX -1.8% eight sessions later
05/27/20… SPX +6.5% eight sessions later
10/15/19… SPX +0.9% eight sessions later
09/05/19… SPX +1.0% eight sessions later
09/04/19… SPX +2.1% eight sessions later
08/19/19… SPX +0.0% eight sessions later
04/10/18… SPX +0.5% eight sessions later
04/04/18… SPX +1.3% eight sessions later
02/14/18… SPX +1.7% eight sessions later
07/08/16… SPX +2.0% eight sessions later
06/30/16… SPX +2.6% eight sessions later
02/25/16… SPX +1.4% eight sessions later
02/22/16… SPX +2.5% eight sessions later
12/23/15… SPX -3.6% eight sessions later
02/12/15… SPX +1.2% eight sessions later
02/10/15… SPX +2.0% eight sessions later
10/28/14… SPX +2.4% eight sessions later
10/23/14… SPX +3.1% eight sessions later
07/05/13… SPX +3.0% eight sessions later
06/27/13… SPX +2.4% eight sessions later
06/19/12… SPX +0.3% eight sessions later
06/15/12… SPX -0.8% eight sessions later
03/15/12… SPX +0.7% eight sessions later
01/03/12… SPX +0.9% eight sessions later
12/29/11… SPX +2.3% eight sessions later
11/11/11… SPX -8.1% eight sessions later
10/27/11… SPX -0.7% eight sessions later
10/24/11… SPX +0.6% eight sessions later

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