There is a scorecard that tracks how professional stock pickers do against a plain index fund, and it comes out twice a year. The most recent long term reading is brutal for the pros. Over the fifteen years that ended in December 2024, about 89 and a half percent of large company active funds in the United States failed to beat the S&P 500. That leaves roughly one in ten who managed to win. These are not amateurs. They are full time managers with research teams, and the simple index still beat almost all of them.
It helps to know what these two approaches are. An active fund pays a manager to choose which stocks to buy and when to sell, trying to beat the market. An index fund does not try to beat anything. It just buys the whole market, or a big slice of it, and holds. One approach is a bet on skill. The other is a bet that owning everything, cheaply, will do fine over time. The scorecard measures how often the skill bet actually pays off, and the answer over long stretches is not often.
In any single year, plenty of active funds win. In 2024, for example, roughly a third of them beat the index, which does not sound so bad. The problem is that the winners change from year to year, and staying ahead for a decade or more is a different challenge entirely. As you stretch the clock, the share of survivors shrinks. One good year is luck as often as skill. Fifteen good years in a row is close to a miracle, and the numbers show almost no one pulls it off.
The biggest reason is cost. An active fund often charges around one percent a year or more, while a broad index fund can charge less than one tenth of that. That gap comes straight out of your return before you see a dime. A manager does not just have to beat the market to earn their keep. They have to beat it by enough to cover their own fee, every year, forever. That is a heavy weight to carry, and most cannot carry it for long. The math works against them from the first day.
Fees are not the only drag. Active funds trade more, and trading has costs of its own, from commissions to the hidden spread between buy and sell prices. More trading also tends to trigger more taxable gains, which hurts you if the fund sits in a regular account. An index fund trades rarely, so it bleeds less on both fronts. Over one year these differences look small. Over fifteen years they compound into the gap the scorecard keeps measuring. Small leaks sink the ship slowly, which is why the damage only shows up on the long chart. Picture two runners who start together. One carries a small pack, the other runs light. For a lap or two they look even. Over a marathon the pack decides the race. Costs work the same way on your money, quietly, mile after mile. The longer you invest, the more it matters.
There is an even harsher detail hiding in the data. Many funds that lose do not just trail the index. They close and vanish, merged away or shut down, and their bad records quietly leave the sample. So the funds still standing after fifteen years are the survivors, the stronger group. Even after grading on that curve, nearly nine in ten still fell short. The full picture, including the funds that died, is worse than the headline number. Survival itself was not a given for the ones you might have picked.
You do not need to read the scorecard to use it. The practical takeaway is that trying to pick the rare winning manager ahead of time is a losing game for most people. Past performance is not a reliable guide, since this year's star often fades next year. A low cost, broad index fund quietly beats the majority of pros over time, with less effort and less worry. That is not a hot tip. It is the boring option, and the boring option keeps winning. None of this is a promise about any single year, only about the long odds.
This is not an argument that every active fund is bad or that no manager ever earns a fee. A small group does beat the market over long stretches, and a few have real skill. The trouble is picking them in advance, before the record exists, which is close to impossible. For nearly everyone building wealth slowly, the calmer path is to stop guessing and own the whole market at the lowest cost you can find. The scorecard has said the same thing for years. Most people paying for the chase would keep more by ending it.
