Stocks above XX-Moving Average Divergence

I'm always looking for leading indicators and just came across something useful. There are a few indexes that represent the % of stocks in the S&P 500 above the 20, 50, 100, and 200 period moving average: S5TW, S5FI, S5OH, and S5TH respectively. If the faster index goes into a downtrend before the slower indexes, looks like it could indicate a reversal soon.