NEW YORK ( TheGoldAndOilGuy.com) -- On Oct. 8 the financial market experienced a broad-based selloff. Every sector was down, with utilities being the only exception.The individual leadership stocks, which are typically small to mid-cap companies -- as seen by the iShares Russell 2000 Index ( IWM) exchange-traded fund -- that have a strong history and outlook of earnings growth were hit hard as well. Whenever the broad market experiences a price correction, one of the most important factors I analyze is how well leading stocks hold up and show relative strength to the broad market. So, where does this leave us? When stocks that have been leading the market higher and only pausing during market corrections in the S&P 500, Dow and Nasdaq, it's a positive sign. This tells us investors and big money continues to flow into the risk-on assets like stocks. Conversely, when these leading stocks/sectors begin succumbing to the selling pressure of the broad market, it quickly grabs my attention and tells us it's time to be aware that a major top may be forming. It looks as though the broad market rally is just barely hanging on. If the leading stocks and sectors begin breaking below their 50-day moving averages, my proprietary S&P 500 Market Timing & Trading System will shift to sell mode and things could get ugly for those who do not know how to trade a bear market. Weekly Relative Strength Showing Negative Divergence This chart has two important things I would like to point out. First is the fact that the RSI has being overbought twice in the past three years, with the most recent one taking place a few months ago. The last time this took place the S&P 500 had a very strong correction. The second insight the RSI is providing is the diverging price and relative strength as shown with the purple lines on the chart below. This is telling us that the power/momentum behind the market is slowing.