The long-run record favors index funds, and the gap is mostly arithmetic. S&P Dow Jones Indices has spent two decades pitting active managers against their own benchmarks, and the tallies keep landing the same way. In the first half of 2026, 67 percent of active large-cap funds trailed the S&P 500, according to the firm's mid-year SPIVA report. That was one of the friendlier stretches in years, which is the caveat worth carrying through this scorecard.
Readings this lopsided still need framing, and framing is a craft of its own. The same discipline sits behind this guide to scenario analysis, which turns a market view into named cases with odds attached. Scorecard debates reward that habit: the numbers are solid, but the window chosen does real work.
Context helps as well. The wider shelf of market analysis tracks how sectors and reporting seasons move together, and the active-passive question sits inside that system rather than outside it.
What Do Fifteen Years of Scorecard Data Document?
The short answer: across the latest long windows, roughly nine in ten large-cap funds trailed. The SPIVA U.S. Scorecard for year-end 2025 puts 15-year underperformance for large-cap funds against the S&P 500 at 89.93 percent, and at 92.89 percent across 20 years, with data through Dec. 31, 2025. All domestic funds ran further behind the S&P Composite 1500, at 93.15 percent over 15 years.
The survivorship detail is where the scorecard turns uncomfortable. Of 1,082 large-cap funds operating at the start of that 15-year window, 50.55 percent still existed at its end, per the report's survivorship tables. S&P DJI counts the closed funds anyway, and its methodology states that scorecards cover the entire opportunity set, not just survivors, to eliminate survivorship bias. The visible fund lineup flatters the industry.
Does a Friendlier Stretch for Pickers Change the Verdict?
Doubtful, on the current evidence. The mid-year report credits 2026's broader market with giving managers room: mid- and small-cap indexes beat the S&P 500 by 7 and 14 percent, respectively, in the half. Even so, 74 percent of mid-cap funds and 69 percent of small-cap funds trailed. A supportive tape, and most managers still finished behind.
The counter-evidence is real and belongs in the tally. Only 49 percent of U.S.-domiciled international funds underperformed, and 38 percent of emerging markets funds did, meaning most beat their benchmarks. Bond categories averaged 38 percent underperformance against 60 percent across equities. Mixed stretches exist. The 15-year lines barely move.
How Much of the Gap Do Fees Explain?
Costs carry a large share of the load, and fee data move in the same direction as performance data. The Investment Company Institute's March 2026 fee study puts the asset-weighted average expense ratio for index equity mutual funds at 0.05 percent in 2025, against 0.64 percent for actively managed equity mutual funds, down from 1.08 percent in 1996. Index equity ETFs averaged 0.14 percent.
Active fees have fallen for decades, so the story is not static. The stubborn part is relative: a manager starting each year behind by half a point or more needs selection skill to clear a benchmark that charges almost nothing. Most do not clear it, on the documented record. We covered a connected angle in Data Centers Now Drive 40% Of PJM's Record Capacity Costs.
Conclusion: The Scorecard Sets a High Bar for Active
Nothing here closes the case on every category or every year. International stretches like the first half of 2026, and much of fixed income, show majorities of active funds beating their benchmarks, and the honest read calls the data what they are: mixed by segment, lopsided in U.S. equity over long windows.
The index funds vs mutual funds debate, sorted this way, comes down to burdens of proof. The scorecard documents the past, and the past charges active management with showing that skill survives costs at scale. The tally so far says most have not. What the next decade documents is unwritten.
