For Long-Term Superior Returns And Diversification, Try An Equal-Weight ETF

 | Feb 22, 2021 05:33AM ET

Equal-weighted exchange-traded funds (ETFs) invest equal amounts of money in companies irrespective of their market capitalizations (caps). As such, a firm's market cap does not matter. The ETF invests the same amount of money in all the companies in the index.

As most of our readers would know, to calculate the market cap, one would multiply the number of shares outstanding by the current share price. For example, a company with 50 million shares selling at $20 a share would have a $1 billion market cap.

Over the past several decades, capitalization-weighted indexing has become the dominant industry standard for passive investment. In a cap-weighted index, a firm with larger market cap would have a more significant impact on the index value.

For instance, the S&P 500, an important barometer of the US stock market's performance, is a market-cap-weighted index. The SPDR® S&P 500 (NYSE:SPY) provides exposure to the index. Apple (NASDAQ:AAPL), whose market cap is $2.18 trillion, has the highest weighting (6.27%) in SPY, followed by Microsoft (NASDAQ:MSFT) and Amazon (NASDAQ:AMZN). The top ten names in the ETF comprise close to 30% of the fund.