從5月10日開始美股突破指數比值 [Trendline breakout ratio (top : bottom)] 上揚,  預測美股回升趨勢。 5月6日美股突破指數比值 = 6 : 96 = 0.06 < 1; 5月7日美股突破指數比值 = 47 : 138 = 0.34  < 1;   5月10日美股突破指數比值  = 85 : 85 = 1, 平算; 5月11日美股突破指數比值 = 90 : 52 =1.73; 5月12日美股突破指數比值 = 52 : 15 = 3.46; 5月13日美股突破指數比值 = 20 : 17 = 1.17. 預測今天美股回升幅度下降。請參見:  

http://www.screenulator.com/cgi-bin/view_screen?id=breakout_ratio

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突破指數比值 - Trendline breakout ratio:

The ratio of the number of stocks broke out their top closest trendlines to the bottom closest trendlines, and stayed that way for more than 2 days. This ratio indicates general market sentiment. The higher the ratio, the more bullish the market is. IMPORTANT: Only stocks with S&P1500 membership are counted in this ratio. All non-S&P symbols and ETFs are not used because they tend to skew the results and not reflect the major direction of IYY or S&P index.