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Is There Such a Thing as Volume-Weighted RSI?

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The short answer is yes. More importantly, this indicator is available in SharpCharts as the Money Flow Index (MFI). Developed by Gene Quong and Avrum Soudack, the Money Flow Index measures buying and selling pressure with calculations based on the RSI formula. They refer to their Money Flow Index (MFI) as volume-weighted RSI in an article with Stocks & Commodities Magazine. John Bollinger, a fan of the Money Flow Index, also mentioned this indicator in an interview with the same magazine. This article will not delve into the formula specifics. There is a Money Flow Index (MFI) article in our chart school that covers the details.

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By incorporating volume, the Money Flow Index can be a valuable tool for the chartist. Bullish divergences and breakouts can be used to identify bottoms. Conversely, bearish divergence and break downs can be used to anticipate tops. The chart for Best Buy (BBY) shows an example of each. As with all indicators, the Money Flow Index (MFI) should not be used alone. Chartists should incorporate other aspects of technical analysis, such as a classic momentum oscillator or pattern analysis. More examples of the Money Flow Index can be found in the ChartSchool article.

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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