JL Collins Reduced Investing to One Fund, Then Quietly Bought the World
JL Collins began writing about money for his daughter, who did not want to hear about it. That origin explains almost everything about the resulting book: it is short, it repeats itself deliberately, and it is organised around removing choices rather than presenting them. The argument is that complexity in investing is largely a product sold to you by people who profit from it, and that a broad low-cost index fund held through every crash you will live to see beats nearly everything else on offer. It is a narrow book, and mostly right.
Edition and argument
- Originally published in 2016, developed from the stock series on the author’s site, jlcollinsnh.com.
- A revised and expanded edition appeared on 20 May 2025 from Authors Equity, running to 320 pages and adding an FAQ and a punchlist.
- The core holding is VTSAX, Vanguard’s total US stock market fund, with a bond fund introduced only in the wealth-preservation phase.
- The target is roughly 25 times annual spending, what Collins calls F-you money.
- Best for early-career accumulators who want one decision rather than a portfolio.
One fund, one behaviour, one book
Collins makes two claims and spends the book defending them. The first is that the market always goes up over the horizons that matter, provided you define the market broadly enough and hold it long enough. The second, and the one that actually determines outcomes, is that you will be tempted to interfere and must not. The chapters on crashes are the strongest in the book precisely because they are not analytical. They are inoculation. He tells you in advance what a 50% drawdown feels like, so that when it arrives you recognise the sensation rather than acting on it.
The mechanics are covered in a handful of pages because there are only a handful of pages of mechanics. Hold VTSAX during accumulation. Add a total bond fund as you approach and enter drawdown, in a proportion set by how much volatility you can tolerate rather than by any formula. Keep costs low enough to be negligible. Do not rebalance obsessively. Do not buy anything an adviser gets paid to sell you. Collins is unusually direct about the incentives of the advice industry, and that section is worth the book on its own for a reader who has never considered where a commission comes from.
The register is conversational to a fault. Chapters open with anecdotes about his own mistakes, including buying into a fund on a hot tip and holding gold through years of nothing. This is not padding; it is the mechanism by which he establishes that he is not selling you certainty. But it does mean the book is thin per page, and a reader who wants density will finish it in an afternoon feeling slightly short-changed.
What the revision actually revised
The 2025 edition is a genuine update rather than a reissue. The contribution limits, tax figures and fund examples are refreshed, which matters because those were the fastest-decaying parts of the original. Collins had argued publicly, before the revision, that this was the only kind of ageing the book suffered from: the principles hold as long as the United States remains a functioning capitalist economy with cheap broad index funds available. The new material adds an FAQ built out of nine years of reader correspondence and a summary punchlist, both of which make the book more usable as a reference than the 2016 version was.
What the revision did not do is reopen the central asset-allocation question. The revised edition still centres a single US total-market fund, and still treats international exposure as unnecessary on the grounds that large American companies earn substantial revenue abroad. That argument was contested in 2016 and it is contested now.
The American assumption, and the author’s own change of mind
The objection to Collins’s home-country concentration is not that US equities have performed badly. It is that the case for holding only them rests on an extrapolation. Critics have pointed out that a company’s overseas revenue does not give you overseas market exposure, because the share price still moves with the domestic market it trades in, and that historical comparisons of a US-only portfolio against one with a fifth held internationally have not consistently favoured the concentrated version on a risk-adjusted basis. Currency, valuation and policy risk all sit unhedged in a single-country portfolio, and the book does not really engage with any of them.
This is where the book’s timing becomes awkward, and interesting. In February 2026, less than a year after the revised edition appeared, Collins announced that he had added international exposure to his own holdings, moving to a combination that includes Vanguard’s total world fund and leaves him around 60% invested in the United States. His stated reasons were trade policy, the dollar’s decline and questions about its long-term reserve status. He framed it as a broadening rather than a reversal, which is fair. But a reader who bought the 2025 edition in good faith and implemented it exactly is now holding a portfolio the author no longer holds himself, and there is no way to learn that from the book.
The bond question is the second soft spot. Collins is candid that he does not like bonds and holds few, and the book’s treatment of when and how much to add is thinner than the topic deserves. For an investor approaching retirement, the sequence-of-returns problem is the single largest risk they face, and it gets rather less attention here than the case against actively managed funds does.
Who is badly served by it
Non-American readers get the least. The book is built on 401(k)s, Roth IRAs and specific Vanguard tickers, and while the principles translate cleanly to a global index fund in a stocks and shares ISA or a SIPP, the reader has to do that translation unaided. There is no discussion of currency exposure for someone whose liabilities are in sterling, which is a real question rather than a technicality.
The other group poorly served is anyone whose problem is income rather than allocation. Collins assumes a stable earner with a meaningful surplus and directs almost all of his attention to what happens to that surplus. If you do not have one, the book has very little to offer, and its cheerful insistence that saving 50% of your income is achievable will read as tone-deaf. That is a limitation of scope rather than a flaw, but it is worth knowing before you buy.
Sources: JL Collins: Is The Simple Path to Wealth outdated? · Simon and Schuster: revised and expanded edition · The Happy Saver: JL Collins Goes Global · Optimized Portfolio: the Simple Path portfolio reviewed · InvestmentNews: how Collins’s strategy works for today’s investors
