07/23/2010
Monitoring Equal-Weight Indexes
We have added a new page of charts to help us monitor the relative strength of equal-weighted indexes against their capitalization-weighted counterparts. Cap-weighted index values are dominated by the larger-cap stocks in the index. For example, the 50 largest-cap stocks in the S&P 500 represent about 70% of the index value. Conversely, the Rydex S&P Equal Weight ETF (RSP) gives each of the 500 stocks equal weighting when calculating the index value. As a general rule, the equal-weighted indexes will outperform their cap-weighted counterparts because smaller-cap stocks dominate the index, but not always, so we want to monitor their performance so we know where we should put our money.
The Price Relative line is calculated by simply dividing the value of RSP by the SPY. When RSP is stronger, the price relative line rises, and it falls when SPY is stronger. Is this really such a big deal? Well, yes, it is. From the March 2009 low the SPY advanced 87% to the May 2010 top. RSP advanced 125% during the same period, which is 44% better performance.
On the negative side, it appears that the equal-weighted indexes are often weaker during pullbacks and declines, but as a practical matter there are no hard and fast rules, and we need to constantly be aware of the relative performance of these two types of indexes.
Below are two charts comparing RSP and SPY over the long term. Note the peculiar behavior of RSP during the 1990s. This was when the stock market bubble was inflating, and money was concentrated in large-cap stocks. When the bear market started in 2000, we can see the sudden up turn in relative strength, and RSP didn't hit its bull market top until a year after SPY.
A final comment on performance, from the 2002 bear market low SPY advanced 107% to the 2007 top. RSP advanced 183% during the same period. Why hasn't anyone noticed?
Bottom Line: There are 11 ETFs that feature equal weighted indexes, and we track and generate timing signals on all of them in our Decision Point Alert Daily Report. On market advances these equal weighted indexes normally outperform their cap-weighted counterparts, but shifts in relative strength do happen, so we have set up a page of special charts specifically to monitor relative strength on these indexes.
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Technical analysis is a windsock, not a crystal ball.
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BIO: Carl Swenlin is a self-taught technical analyst, who has been involved in market analysis since 1981. A pioneer in the creation of online technical resources, he is president and founder of DecisionPoint.com, a premier technical analysis website specializing in stock market indicators, charting, and focused research reports. Mr. Swenlin is a Member of the Market Technicians Association.
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Copyright 2010 Decision Point. This article is for the benefit of Decision Point subscribers only and may not be summarized, reproduced, or rebroadcast in any fashion without our written permission. This includes discussing specifics from this newsletter in message board, chat, or blog formats. Nothing herein should be construed as an offer or solicitation to buy or sell any security. Past performance does not indicate future results.




