With a downturn in the stock market this week, the NYSE Summation Index ($NYSI) turned back down and broke below its 5-day EMA. This shows that breadth is deteriorating once again. The McClellan Oscillator also turned negative. Note that the Summation Index is a cumulative measure of the McClellan Oscillator. The Summation Index rises when the oscillator is positive and falls when the oscillator is negative.
Click this chart for a live image
About the author:
Arthur Hill, CMT, is the Chief Technical Strategist at TrendInvestorPro.com. 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
