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How can I count up days versus down days for a stock?

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StockCharts.com users can employ MarketCarpets to see the number of up or down days for S&P 500 stocks within a particular period. The example below shows the S&P Sector MarketCarpet with stocks grouped by sector. There is a drop down menu in the upper left corner, just below “current view”. Choose “up and down days” to see the net up days for a period (up days less down days). Next, extend the slider at the bottom to the desired number of days. Left click the left edge of the slider and drag it to extend.

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Click this image for a live version.

This MarketCarpet covers the month of May, which, as the sea of red reflects, has been mostly down. Users can hover over the MarketCarpet, right click the mouse and choose “show values” to see each stock’s value. A value of -12 indicates that the stock has been down all 12 days. Note that 13 days refers to 12 price changes. The energy, finance, industrials and materials sectors have the most red squares. Believe it or not, there are a few stocks with positive readings. These isolated green squares can be found mostly in the utility, consumer staples and healthcare sectors.  

Arthur Hill
About the author: , CMT, is a Senior Technical Analyst at StockCharts.com. He has written articles for numerous financial publications including Barrons and Stocks & Commodities magazine. 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 technician. In addition to his CMT designation, Arthur holds an MBA from the Cass Business School at City University in London. Learn More
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