The spread between the relative strength leaders and relative strength(RS) laggards is a regular measurement by a number of research groups. The below article from Dorsey Wright Money Management shows that there are times that the RS leaders outperform the laggards and vice versa. We have just entered a period when the RS leaders are leading again. The education process of using Relative Strength is important to think through. Relative Strength has been shown to be a very successful method of investing, but there are periods where Relative Strength leaders will lag, and then recover. According to the table in the below analysis from Dorsey Wright, the leaders are now leading again.