Performance Outpacing Market Leaders
The equal-weight approach to large-cap U.S. stock indices is currently gaining significant attention, with the Invesco S&P 500 Equal Weight ETF (RSP) marking a major milestone. This ETF, which is noted as the oldest, largest, and most popular fund utilizing this investment methodology, recently surpassed $100 billion in assets under management during the month of August 2026. This significant growth follows the ETF attracting over $12 billion this year alone.
In 2026, the equal-weight strategy has shown superior performance compared to the traditional market-weight index, which typically forms the basis for most investor exposure. As investors become increasingly concerned about concentration risk within major indices—such as the S&P 500, where the top 10 names account for nearly 40% of the index—the equal-weight strategy offers an alternative. These ETFs allocate equal capital to every company in the underlying index, contrasting with market-weight funds that reflect the core index’s inherent market capitalization.
Market Shifts and Concentration Concerns
Market analysts suggest that the recent outperformance of equal-weight funds is a reaction to years of market dominance by a narrow group of technology stocks. The “Mag 7″—comprising Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia, and Tesla—collectively account for roughly one-third of the S&P 500. While these mega-cap companies dominated the U.S. market for years, their performance has cooled; they posted flat returns in the first half of 2026. This contrasts sharply with the S&P 500, which achieved gains of 9.3% during the same period.
According to Cinthia Murphy, director of research at VettaFi, the increased interest is notable, stating that “All of a sudden, people are paying attention.” She noted that the equal-weight strategy often gets overlooked when the market is led by a very narrow theme, as had been the case recently. Similarly, Nathan Geraci, president of NovaDius, pointed out investor anxiety regarding the heavy concentration in AI themes and major hyperscalers, questioning if current elevated valuations are sustainable.
The Benefits of Equal Weighting
Geraci explained that using an equal-weight approach addresses the issue of concentration risk and enables investors to participate fully even if market leadership begins to spread across various sectors and market segments. He added that equal weighting helps solve the problem of concentration risk and allows investors to participate more fully if market leadership continues to broaden.
Murphy emphasized the strategic value of the approach, arguing that it provides broad diversification. She stated, “If you’re equal weighted, you’re always broadly diversified. You’re not really picking a winning horse; you’re betting on all the horses.”
Alternative Strategies and Investments
While the three largest S&P 500 ETFs—Vanguard S&P 500 ETF (VOO), iShares Core S&P 500 ETF (IVV), and State Street SPDR S&P 500 Trust (SPY)—hold a combined nearly $3 trillion in assets, investors are increasingly looking toward equal-weight and smart-beta strategies for diversification. Murphy and Geraci both confirmed that while RSP has garnered attention, numerous other options exist across the equal-weight ETF category that track various indexes or specific sectors.
Geraci highlighted several alternatives available to meet specific investor needs, including:
- Invesco Russell 1000 Equal Weight ETF (EQAL): Tracks a different index than RSP.
- First Trust Nasdaq-100 Select Equal Weight ETF (QQEW): Focuses on companies within the index with high combined quality and growth scores.
- ProShares S&P 500 Dividend Aristocrats ETF (NOBL): Tracks companies that have consistently raised dividends for at least 25 years.
- iShares MSCI USA Equal Weighted ETF (EUSA): Concentrates on large- and mid-caps within the underlying MSCI index.
- ALPS Equal Sector Weight ETF (EQL): Allocates equal weight across economic sectors while maintaining float-adjusted market capitalization weighting within each sector.
- Invesco S&P 500 Equal Weight Technology ETF (RSPT): Equal weights technology companies in the underlying index.
- Invesco QQQ Equal Weight ETF (QEW): Concentrates on U.S. large caps across all 11 Global Industry Classification Standard economic sectors.
- SPDR S&P Biotech ETF (XBI): Tracks an equal-weighted index of U.S. biotechnology stocks.
- Invesco S&P 500 Equal Weight Materials ETF: Holds U.S. materials and natural resource-related companies from the S&P 500.
Geraci also noted that historically, the equal-weighted S&P 500 index has demonstrated performance similar to mid-cap stocks, suggesting that increasing exposure to the mid-cap category remains a viable option for investors.
