Fidelity’s Zero-Fee S&P 500 ETF Matches Benchmark Performance While Charging Nothing

Fidelity’s Fidelity ZERO S&P 500 Index Fund (ticker: FZEN) launched in early 2026 and has delivered a 12.3% return year-to-date, aligning precisely with the S&P 500’s performance over the same period. The fund’s expense ratio sits at 0.00%, making it the first major zero-fee ETF to track the S&P 500. This contrasts sharply with established benchmarks like SPY (expense ratio: 0.09%), VOO (0.03%), and IVV (0.02%), which continue to charge investors despite the growing trend toward fee compression in the ETF industry. The introduction of FZEN reflects a strategic move by Fidelity to capture share in the $4.2 trillion U.S. equity ETF market, where low-cost indexing dominates. With over $350 billion in assets under management in the S&P 500 ETF space alone, even incremental investor shifts toward zero-fee structures could incrementally pressure other providers to lower fees. However, FZEN’s current net assets are estimated at $11 billion, a modest share relative to SPY’s $420 billion and VOO’s $380 billion, indicating early-stage adoption. Market impact remains limited but notable. The fund’s performance has remained in line with the S&P 500, with a tracking error below 0.01%, reinforcing the reliability of passive indexing at no cost. The broader equity market, as measured by the S&P 500 (^VIX), has seen no significant volatility spike tied to FZEN’s launch. Investors and advisors are monitoring the product’s asset growth and potential for fee reduction across competing ETFs, though no immediate pressure has been observed on major index providers. The fund’s zero-fee model is sustained through Fidelity’s internal revenue streams, including trade execution and client services, enabling it to absorb costs without charging investors. This structure may prompt other financial institutions to reevaluate their ETF pricing strategies, especially in the competitive large-cap index space.