The four buckets, stripped of marketing#
All four do the same basic thing. They pool money from many people and buy a mix of assets. Everything after that is packaging.
Index funds track an index and do no stock-picking. Nobody is paid to have opinions, so the fee sits at 0.02%–0.20%. Priced once a day, after the close, at net asset value.
Mutual funds hire a professional to beat a benchmark. That salary shows up as 0.5%–1.5% or more. Also priced once daily.
Hedge funds are private, restricted to accredited investors, and free to use short selling, borrowed money, and derivatives. The classic fee is “2 and 20” — 2% of your money every year, plus 20% of any profit.
ETFs are index funds that trade like stocks. Diversified basket, real-time pricing, fees from 0.03%–0.75%, usually commission-free.
Read that list again and notice what’s actually varying. Not the assets. The bill.
The bill is the most reliable number on the page#
Every other figure in a fund brochure is a forecast. Past returns, manager tenure, star ratings, the sector story — all of it is a guess about the future dressed as a fact about the past. The expense ratio is the one number that’s contractually certain. It gets taken whether you make money or lose it.
And the evidence on whether the expensive version earns its price is brutal. S&P’s SPIVA scorecards have tracked this for two decades. Over the trailing 20 years, roughly 92% of active US equity funds underperformed their benchmarks. The underperformance rate gets worse as the measurement window gets longer — which is the opposite of what “skill” would predict.
There’s a real methodological argument here worth knowing about. A 2026 study sponsored by the Investment Adviser Association argues SPIVA’s construction understates active performance. Fine. Assume the critics are half right and the true number is 80% rather than 92%. You are still paying a premium for a four-in-five chance of losing to the cheap option.
That gap doesn’t come from managers being stupid. It comes from arithmetic. Before costs, active investors collectively are the market. After costs, they’re the market minus the fee. The fee is the whole story.
Hedge funds charge the most and prove the point hardest#
“2 and 20” sounds like a partnership. It functions like a tax on your capital plus a share of your upside, with no matching share of the downside.
The public record is unkind. Warren Buffett’s 2008–2017 bet pitted a low-cost S&P 500 index fund against a basket of funds-of-funds, measured net of all fees. The index won, and the funds trailed in every one of the nine years that followed the bet’s start. Zoom out further and the Barclay Fund of Funds index returned about 233% over 24 years against roughly 846% for SPY.
The counter-argument is that hedge funds aren’t trying to beat the S&P 500 — they’re selling lower correlation and smaller drawdowns. That’s a fair defence and partly true: the average hedge fund beat the index in 2015, 2018 and 2022, all down years where the funds simply lost less. But “loses less in bad years, loses badly in good years” is an insurance product, not a growth engine. Price it as insurance and the 2-and-20 looks very expensive.
So what actually distinguishes the four?#
Two things, and neither is “which one makes more money.”
Access. Hedge funds are gated by net worth. Everything else is open to anyone with a brokerage account. That gate is a marketing asset — exclusivity reads as quality even when the returns say otherwise.
Trading mechanics. Index funds and mutual funds price once a day at NAV. ETFs trade continuously, so you can buy at 10:03am. For a long-term investor this matters roughly not at all, and can actively hurt if it tempts you into trading.
That’s it. That’s the difference. Once you’ve accounted for fee level and access rules, the remaining distinctions are plumbing.
The one case for paying more#
Not every high fee is a rip-off. There’s a legitimate reason to buy a mutual fund: you want exposure to something an index doesn’t cover cleanly, or you specifically want a named manager’s strategy and you understand you’re paying for it.
The failure mode isn’t paying up. It’s paying up by accident — buying a 1.2% fund because it was the default in a workplace plan, or because it had four stars, and never asking what the 1.2% buys. Over 30 years, the difference between 0.03% and 1.2% on a growing balance runs into six figures on a modest portfolio. That money doesn’t go anywhere exciting. It goes to a management company.
Summary — and what to do about it#
The four fund types are not four strategies. They’re four price points, and the price is the most predictive number in the document.
- Find the expense ratio before anything else. Every fund publishes it. If you can’t find it in 30 seconds, that’s information too.
- Set a ceiling and hold it. Under 0.20% for a core holding is easy to achieve now. VOO-style S&P 500 trackers sit at 0.03%.
- Treat any fee above that as a purchase decision. You’re buying a specific manager or a specific niche. Be able to say which, out loud.
- Ignore the exclusivity signal. “Accredited investors only” tells you about minimum account size, not about returns.
- Check what it tracks, not what it’s called. Fund names are marketing; the underlying index is the product.
The boring conclusion is the correct one. For most people investing for decades, low-cost index funds and ETFs do the job, and the money saved on fees is the most reliable return in the whole exercise.
Sources & further reading#
- SPIVA Scorecard analysis, Index Fund Advisors — ~92% of active US equity funds underperformed their benchmarks over 20 years.
- SPIVA, S&P Dow Jones Indices — the primary scorecard series.
- “How the SPIVA U.S. Scorecard Understates the Performance of Actively Managed Mutual Funds” — the methodological counter-argument.
- AEI on the Buffett bet and hedge fund performance — the S&P 500 beat the average hedge fund in each of ten years.
- Market Sentiment, “Do Hedge Funds beat the market?” — Barclay Fund of Funds 233% vs SPY 846% over 24 years.
