Index Funds Outperform Active Management as Fees Drop

Paying 2% for an active fund that just copies the index

An investor might pay an annual management fee of 2% or 0.20% for an ETF that tracks the same index. The former is an active management product. The latter is an index fund. When active management is limited to trinc its benchmark, that tenfold difference in cost becomes the decisive argument, explaining why index funds have been cannibalizing active management for years. The thesis is based on arithmetic that almost no one disputes, although the consequences generate more doubts than it seems.

The fee that active management fails to justify

The reasoning is purely arithmetic. A fund charging 2% versus 0.20% for the same index ETF needs to beat the market by more than 1.8 percentage points annually just to break even. And beating it consistently is, according to the majority view, almost impossible: no one has all the necessary information to anticipate prices. When the fund also replicates its index at almost 95%, the question becomes uncomfortable. Why pay for management that is barely distinguishable from automatic replication?

From there, the criticism intensifies. Some directly label the volume still in active management as a scam for the unwary: too much money being paid in high fees for a product that, at best, matches the index. The suspicion is not just about cost, but also about incentives. It's not always clear if the advisor works for the client or for their own bonus.

What if the danger lies within the index itself?

Here the narrative gets complicated. Criticizing active funds doesn't equate to endorsing index funds. The most cited objection points to the MSCI World, the flagship product of passive investing, which is currently heavily weighted with artificial intelligence companies, the most capitalized on the market. If these companies falter, the index that replicates them falls with them. The question posed by skeptics is whether a bubble in an index fund might be even more likely than in a single company, precisely because it concentrates the money of thousands of investors in the same winning positions.

The defense of index funds doesn't deny the risk, but relativizes it. A global index rebalances its portfolio over time: today's leading companies may be replaced by others when the cycle changes. What the sector does admit is a lack of awareness. A circulating anecdote illustrates this starkly: an investor convinced they were diversified held 35% in emerging markets and 50% in Europe without realizing it. Lots of mining and banking, and no clear idea why.

The day stagflation arrives

The most divisive scenario is high and persistent inflation with a falling stock market. Some analyses suggest that only assets capable of passing costs on to their customers will hold up: commodities and precious metals first. The precedent cited is the stagflation of the 1970s in the United States, when the stock market reached an average P/E ratio of 8 and plunged sharply while oil companies maintained their position. In Argentina, with hyperinflation instead of stagflation, the P/E ratio reached 5.

On the other hand, there are those who argue that the index fund investor doesn't change their holdings during downturns: they contribute equally in bad times and good, because that's the theory. The reasonable doubt is how many will maintain their nerve when the journey lengthens. No one knows until it happens.

Active management also has its success stories

Not all money fleeing active management does so due to poor results. There are funds with notable names that do hold up. The most cited is Gamma Global FI, with only 10% in equities and a return close to 8% annually, according to those who use it as a conservative cushion. Its drawback: high fees for such a defensive profile.

There are also personal examples that fuel faith in self-management. A stock portfolio compared to Berkshire Hathaway, substituting each contribution with shares of the holding company, yielded a result that almost doubled that of imitating the Oracle of Omaha. The merit, according to its author, is not intuition, but buying only when cheap. The fine print: the comparison lives or dies depending on the time frame chosen.

Meanwhile, the foundational narrative of index investing is called into question. Neither Buffett nor Bogle, the two great proponents of passive investing, held their personal fortunes in index funds. Preaching one thing and practicing another is the oldest tradition in finance.

The outcome: price versus concentration

The picture is uncomfortable for both sides. Index funds win on price but carry the risk of concentration. Active management has brilliant cases, although its average fee is not justified in most prospectuses. What if the solution wasn't to choose, but to be clear about what you hold? No salesperson will answer that question for you.