The hunt for quality in a challenging market starts with the relative strength line. It tells an investor how a stock is acting vs. the S&P 500. A declining RS line means the stock is a laggard. A rising RS line points to outperformance. Sometimes a stock outperforms by losing less than the S&P 500. Other times it outperforms by gaining more than the index. Where is the strength among Sector Leaders in the current stock market?