Can The Russell 2000 Continue To Lead The S&P 500?

 | Apr 09, 2015 07:01AM ET

Since mid-January, Large Cap stocks (i.e. the S&P 500) have been nipping at the heels of Mid Cap Stocks (i.e. Russell 2000). In 2014 many traders and market commentators pointed to the major under-performance as a big concern for the market as a whole. But it seems that notion as been left in the rear view mirror as stocks have continued to march higher and mid caps (via the iShares Russell 2000 ETF (ARCA:IWM)) have improved. The conversation has now shifted from “look how bad they are doing!” to “look how much stronger they are!” Oh how things change.

I often focus on price charts. Below is a chart of the Advance-Decline Line for the S&P 500 (top panel in red) and the S&P Mid Cap Index (bottom panel in black). While breadth for the S&P 500 has been rising right along with price, lately it has begun to put in a set of lower highs.

At the same time this is occurring, the Mid Cap A-D Line has been setting new highs, keeping its up trend alive. I’m not using this chart to make a market call, but simply to point out an interesting development taking place.