Art's Charts

Setting Expectations for Post-Crash Price Action


The S&P 500 moved from a 52-week high to a 52-week low with lightening speed over the last three weeks. To capture the sharpness of this decline, I am showing a chart with the 3-week Rate-of-Change in the indicator window. At -18.78%, this is the deepest three week decline since October 2008 and the third time the indicator has dipped below -10% since the March 2009 low. The chart also shows the Zigzag (18) to focus only on swings that are 18% or more. This is the third 18% decline since the March 2009 low.

Judging from the steepness of the decline and the 9.29% surge on Friday, the 2011 period could offer a road map to consider going forward.  The chart below shows the S&P 500 falling 16.77% in 11 days in July-August 2011. Nine weeks of hair raising volatility followed this plunge as the index went nowhere fast. Actually, I did not have any hair left by the time this period ended.

The first indicator window shows the S&P 500 Zigzag (7) to highlight swings that are 7% or more. Notice that there were eight such swings during this nine week period. The second indicator shows ATR(22) edging higher in June-July and turning up sharply in August. This confirms the increase in volatility. The market did not settle down until ATR(22) moved below its 50-day SMA in mid October.

Given the March 2020 crash and the 9.29% surge on Friday, it looks like we are moving into a period of extreme volatility (at best). At worst, we are in a bear market and negative outcomes are more likely in bear markets. Note that the broad market environment turned bearish in late February when the Index and Sector Breadth models turned majority bearish at

This weekend at I went back 50 years to analyze four bear markets and two crashes (with video). History does not exactly repeat itself, but it often rhymes and we can learn from past price action. In this post and video, I will outline what we can expect after a crash and in a bear market. In addition, I will show some bearish setups to watch for.

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Arthur Hill, CMT

Chief Technical Strategist,

Author, Define the Trend and Trade the Trend

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Arthur Hill
About the author: , CMT, is the Chief Technical Strategist at Focusing predominantly on US equities and ETFs, his systematic approach of identifying trend, finding signals within the trend, and setting key price levels has made him an esteemed market technician. Arthur has written articles for numerous financial publications including Barrons and Stocks & Commodities Magazine. In addition to his Chartered Market Technician (CMT) designation, he holds an MBA from the Cass Business School at City University in London. Learn More
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