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Warren Buffett
Chairman Emeritus, Berkshire Hathaway

Warren Buffett: What If Index Funds STOP Working?

📅 Oct 23, 2026 Compound Interest 8 MIN 1 VIEWS 12 SEGMENTS · 2 SPEAKERS
Warren Buffett, the legendary investor behind Berkshire Hathaway, has turned his smart and patient long-term value investments into one of the greatest fortunes in history. With a multi-decade track record, he's beaten the market time and time again by sticking to fundamentals and his investing principles. Dive into this video to soak up his timeless wisdom and listen closely to his advice. Subscribe to the channel to see more insightful videos like this one, and this could change how you handle money forever!

What Warren Buffett said

Written from the verified transcript and checked against it. Every figure links to the moment it was said.

Warren Buffett defended his long-standing advice to invest in low-cost S&P 500 index funds, saying his will still directs 90% of his widow's funds into them and that he would 'disagree quite violently' with claims that the day of investing in America is over. He argued that index funds reflect the market and that low fees will beat high-fee stock pickers over time. He cautioned against buying stocks unless investors are prepared to hold for 20-30 years, withstand a 50% drop, and ignore daily quotes. He explained Berkshire's large cash position as preparation for worst-case scenarios, citing 2008 and the possibility of cascading problems. He acknowledged Berkshire may underperform the S&P 500 over the next decade, made no promises of outperformance, and noted that managing large sums makes beating the index harder.

Key takeaways

  1. Buffett's will still directs 90% of his widow's funds into index funds, and he believes low-fee index funds will beat high-fee stock pickers over time.
  2. He would 'disagree quite violently' with the claim that the day of investing in America is over, and sees no evidence that index funds are a terrible way to invest.
  3. He advises buying stocks only if you can hold for 20-30 years, withstand a 50% drop, and never look at a quote.
  4. He makes no promise that Berkshire will beat the S&P 500 over the next 10 years, but has 99% of his money in Berkshire.
  5. Berkshire's book net worth at quarter end was over $370 billion, down but still the largest of any U.S. corporation.

Numbers and commitments

FigureWhat it refers toTypeAt
90% Share of widow's funds directed to index funds in his will commitment 0:00
50% Potential stock decline investors must be prepared for metric 0:34
20 or 30 years Timeframe over which stock investing will work out timeline 0:34
2 years Timeframe over which stock investing may not work out timeline 0:34
1954 His best year, but with small sums of money timeline 6:33
99% Share of his money in Berkshire commitment 7:28
370 some billion Berkshire's book net worth at quarter end metric 7:28

Chapters

  1. 0:00Defending index funds
  2. 0:34Stock buying advice and holding period
  3. 1:23Cash position and worst-case preparation
  4. 3:01Psychological readiness for stock drops
  5. 4:34Index funds vs active management
  6. 6:33Berkshire underperformance and S&P 500
  7. 7:28Commitment to Berkshire and book value

Questions asked in this interview

3
  1. 1:17Warren, why are you recommending listeners to buy now?
  2. 4:19Would you please provide your thoughts on this topic, particularly in regards to an investment time span of 10 years?
  3. 6:12So, what would you attribute Berkshire's underperformance to?
Warren Buffett 0:00 ↗
It directs that my widow would have 90% of the funds in index funds. I think it's better advice than people are generally getting from people that are getting paid a lot to give other advice. You don't make a lot of money advising an S&P 500 index fund. If you say the day of investing in America is over, I would disagree quite violently. And then is there something special about index funds being a terrible way to invest? Very hard to have evidence of that. I mean, that the index funds reflect the market and one side has high fees that think they can pick out stocks and the other side has low fees. I know which side's going to win over time.
And I'm not recommending that people buy stocks today or tomorrow or next week or next month. I think it all depends on your circumstances, but you shouldn't buy stocks unless you expect, in my view, to hold them for a very extended period and you are prepared financially and psychologically to hold them the same way you would hold a farm and never look at a quote. You don't need to pay attention to them. And you're not going to pick the bottom and nobody else can pick it for you or anything of the sort. You've got to be prepared to, when you buy a stock, have it go down 50% or more and be comfortable with it. As long as you're comfortable with the holding, you should be in a position to hold. And I don't know whether today is a great day to buy stocks. I know it will work out over 20 or 30 years. I don't know whether it'll work out over 2 years at all.
Interviewer 1:17 ↗
Warren, why are you recommending listeners to buy now? You're not comfortable buying now, as evidenced by your huge cash position.
Warren Buffett 1:23 ↗
Well, A, as I explained, the position isn't that huge when I look at worst-case possibilities. I would say that there are things that I think are quite improbable and I hope they don't happen, but that doesn't mean they won't happen. I mean, for example, in our insurance business, we could have the world's or the country's number one hurricane that it's ever had, but that doesn't preclude the fact we could have the biggest earthquake a month later. So, we don't prepare ourselves for a single problem, we prepare ourselves for problems that sometimes create their own momentum. I mean, 2008 and 9, you didn't see all the problems the first day when what really kicked it off was when Freddie and Fannie, the GSEs, went into conservatorship in early September. And then when money market funds broke the buck, I mean, there are things that trip other things. And we take very much a worst-case scenario into mind that probably is a considerably worse case than most people do. So, I don't look at it as huge.
And I'm not recommending that people buy stocks today or tomorrow or next week or next month. I think it all depends on your circumstances, but you shouldn't buy stocks unless you expect, in my view, you expect to hold them for a very extended period and you are prepared financially and psychologically to hold them the same way you would hold a farm and never look at a quote. You don't need to pay attention to them. And you're not going to pick the bottom, and nobody else can pick it for you or anything of the sort. You've got to be prepared when you buy a stock to have it go down 50% or more and be comfortable with it, as long as you're comfortable with the holding.
And I pointed out, I think a year, maybe 2 years ago in the annual report, I pointed out that there have been three times in Berkshire's history when the price of Berkshire stock went down 50%. Three different times. Now, if you held it on borrowed money, you could have been cleaned out. There wasn't anything wrong with Berkshire when those three times occurred, but if you're going to look at the price of the stock and think that you have to act because it's doing this or that, or somebody else tells you, well, I mean, you know, how can you stay with that when something else is going up or anything? You've got to be in the right psychological position. And frankly, some people are not really careful. Some people are more subject to fear than others. It's like the virus. It strikes some people with much greater ferocity than others. And fear is something I've really never felt financially, but I don't think Charlie's felt it either. Some people can handle it psychologically. If you can't handle it psychologically, then you really shouldn't own stocks because you're going to buy and sell them at the wrong time. And you should not count on somebody else telling you this. You should do something you understand yourself. If you don't understand it yourself, you're going to be affected by the next person you talk to. And you should be in a position to hold. And I don't know whether today is a great day to buy stocks. I know it will work out over 20 or 30 years. I don't know whether it'll work out over 2 years at all. I have no idea whether you'll be ahead or behind on a stock you buy on Monday morning or the market.

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Cite this transcript

APA, MLA, BibTeX
APA

Buffett, W. (2026, October 23). Warren Buffett: What If Index Funds STOP Working? [Interview transcript]. Compound Interest. CEOInterviews.AI. https://ceointerviews.ai/interview/3122820/

MLA

Warren Buffett. "Warren Buffett: What If Index Funds STOP Working?." Compound Interest, 23 Oct. 2026. Transcript, CEOInterviews.AI, https://ceointerviews.ai/interview/3122820/.

BibTeX
@misc{buffett2026_3122820,
  author       = {Warren Buffett},
  title        = {Warren Buffett: What If Index Funds STOP Working?},
  howpublished = {Interview transcript, Compound Interest. CEOInterviews.AI},
  year         = {2026},
  month        = {oct},
  url          = {https://ceointerviews.ai/interview/3122820/},
  note         = {Speaker-attributed transcript with timestamps}
}