When investors buy the S&P 500, they assume they’re getting balanced exposure to America’s largest companies. But SPDR S&P 500 ETF Trust (NYSEARCA:SPY) delivers something different: a portfolio where technology commands over one-third of assets, and the top three holdings represent more than 20% of the fund. For investors seeking actual sector balance, ALPS Equal Sector Weight ETF (NYSEARCA:EQL) treats all eleven S&P 500 sectors equally, regardless of market capitalization.
Two Philosophies for Accessing the Same 500 Companies
SPY’s market-cap weighting creates dramatic concentration. Technology receives 34.2% allocation while energy gets just 2.8%. This structure amplifies whatever sectors are winning, letting profits compound as successful companies grow larger. The fund’s $700 billion in assets and 0.09% expense ratio make it the default choice for passive investors.
EQL holds equal positions in eleven sector-specific ETFs. Technology gets the same 9.1% allocation as utilities, energy, and materials. This prevents any single sector from dominating returns, creating a defensive posture that reduces reliance on continued mega-cap tech outperformance.
The Performance Reality Check
Over the past decade, SPY’s concentration strategy proved superior, returning 234% compared to EQL’s 217%. The five-year gap is narrower at 85% versus 81%, while year-to-date performance in early 2026 shows EQL slightly ahead. This reveals the fundamental tradeoff: market-cap weighting rewards investors when dominant sectors continue winning, but equal-weighting provides ballast when leadership rotates.
EQL’s 0.27% expense ratio costs nearly three times SPY’s fee. On a $100,000 investment, that’s an extra $180 annually, adding up to roughly $5,400 over 30 years before compounding effects.
The Income Consideration
EQL’s 1.69% yield appears attractive compared to SPY’s 1.03%, though investors should research the consistency of each fund’s dividend payments when evaluating income potential.
Who Should Avoid Each Fund
SPY is wrong for investors convinced that technology’s dominance will fade or those uncomfortable with nearly 40% of their S&P 500 exposure concentrated in ten companies. It’s also problematic for contrarians seeking to benefit from sector rotation away from mega-cap growth stocks.
EQL doesn’t fit investors focused on maximizing total returns. The fund’s structural underperformance during tech-led rallies makes it unsuitable for those prioritizing maximum capital appreciation.
Consider RSP for True Equal-Weighting
Invesco S&P 500 Equal Weight ETF (NYSEARCA:RSP) offers a more direct equal-weight approach by holding all 500 stocks at equal weights rather than using sector ETFs as intermediaries. This provides finer-grained diversification and has historically delivered stronger performance than EQL during value and small-cap rallies, though it comes with a 0.20% expense ratio and higher turnover from constant rebalancing.
SPY remains the better buy for most investors seeking S&P 500 exposure, delivering superior returns with lower costs and reliable income, though its technology concentration creates meaningful risk if sector leadership shifts.
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