Waiting for the Breadth Thurst ($RHNYA)
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The Record High Percent Index is a market breadth indicator created by dividing the number of 52-week highs for a given market by the sum of the number of new highs and the number of new lows.
Record High Percent = New Highs / (New Highs + New Lows)
The values range between 0.0 and 1.0. A value of 0.0 means that there were no new highs on that day. A value of 1.0 means that there were no new lows on that day. A value of 0.5 means that the number of new highs and new lows were equal.
StockCharts.com computes and publishes three versions of the Record High Percent Index - one for the NYSE ($RHNYA), one for the Nasdaq ($RHCOMPQ), and one for the American Stock Exchange ($RHXAX).
The Record High Percent Index is the basis for another popular index called the Breadth Thrust Indicator. First developed by Martin Zweig, the Breadth Thrust Indicator is equal to the 10-day simple moving average of the Record High Percent Index.
According to Zweig, a "Breadth Thrust" occurs when the Breadth Thrust indicator rises from below 40% to above 61.5% within 10 trading days. The signal occurs when the given market is in the process of changing from an oversold condition to one of strength, but has not yet become overbought. Zweig goes on to say that this signal typically occurs before most bull markets.
"Breadth Thrusts" are rare but significant. When the market is really ready to rally again, expect to see the red line on this chart to jump.
