The Colossal Mistake | The Danger of Narrow Markets — Practical Lessons from Richard Bernstein
What this covers
In this episode of Excess Returns, Jack and Matt break down the timeless investing wisdom shared by legendary strategist Richard Bernstein. Drawing on decades of experience, including his time as Merrill Lynch’s Chief Strategist, Bernstein discusses the risks of a narrow market, the future of growth and value investing, passive investing misconceptions, the implications of government debt, and how investors can navigate today’s noisy, hype-driven environment. Whether you’re grappling with inflation, tariffs, or the rise of AI, this conversation offers critical lessons for long-term success.
Topics Covered:
Why knowing when to sell is more important than buying in momentum investing
The risks of today’s narrow market leadership and overconcentration in “Mag 7” stocks
How deglobalization and tariffs contribute to long-term inflation pressures
The real consequences of rising U.S. government debt and the myth of a sudden day of reckoning
Why international markets may offer overlooked growth opportunities
The nuance behind passive investing and why index choice matters
The Fed’s challenges in a post-globalization, inflationary world
Bernstein’s ultimate advice for investors: avoid the siren song of get-rich-quick schemes and stick to the fundamentals
Timestamps: 00:00 – Introduction and framing the lessons from Richard Bernstein 02:00 – The problem with momentum investing and narrow markets 12:00 – Do tariffs cause long-term inflation? 20:00 – The risks of excessive U.S. government debt 28:00 – International stocks and index composition 36:00 – Rethinking passive investing and index choices 43:00 – The Fed as a lagging indicator and its difficult position today 52:00 – Bernstein’s top lesson: avoid hype, stick to simple strategies
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Richard Bernstein argues that investors must resist chasing narrow market trends and speculative momentum, instead maintaining disciplined diversification and value-oriented strategies while recognizing structural shifts like deglobalization that are reshaping the investment landscape.
- Momentum investing without understanding when to sell leads to losses; narrow market concentration in Mag 7 stocks does not reflect economic fundamentals and creates opportunities elsewhere
- Deglobalization and tariffs are inherently inflationary, shifting the Fed from a decades-long disinflationary environment into one where the dual mandate becomes binding
- The Fed is a lagging indicator reacting to data, not a leading indicator initiating policy, so investors should not treat Fed announcements as primary drivers of portfolio construction
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Jack Bogle, though a hero and founder of modern passive investing, never specified which index to buy or when—a critical omission—because buying the NASDAQ at the peak took 14 years to break even, while buying emerging markets or energy during that period would have been fantastic, and buying the S&P 500 produced negative returns for a decade.
“Jack would never tell you. He would say, 'Go buy an index.' What he would never tell you is what index to buy and when. And that's actually a pretty critical question”
Deglobalization is inherently inflationary because globalization was inherently disinflationary by increasing competition, and deglobalization reduces competition, putting upward pressure on prices.
“I think that tariffs deglobalization first of all just the process of deglobalization is inflation is inherently inflationary. And the reason why was that globalization, whether you like it or not, I mean, I'm not passing judgment on that one, but but globalization was inherently disinflationary because all globalization did was increase competition.”
The Fed is a lagging indicator, not a leading indicator: it observes data (growth, inflation), analyzes it, and then reacts to it, so investors cannot treat Fed policy as an initiator of markets but rather as a reactor to observable economic changes, making Fed-dependent trading less reliable for portfolio construction.
“leading, lagging, and coincident indicators... A leading indicator is one that actually leads GDP. A coincident indicator moves in tandem with GDP and a lagging indicator moves after GDP.”
The risk of U.S. government debt is not a sudden day of reckoning where investors flee overnight, but rather a slow bleed that has already been underway for 10 to 15 years, manifested as a growing risk premium on Treasury yields relative to other AAA-rated sovereign debt.
“I'm not sure people kind of have this notion that um, there's going to be a day of reckoning, right? we're going to wake up tomorrow and we're going to be an emerging market and nobody's going to want to own our assets and it's going to be this sudden thing like all of a sudden the lights are turned on and and I love I love when people say that one because it's like you know we're so smart and the markets are stupid.”
RBA and other investors think like investors, not economists: whereas economists compare the U.S. and European economies abstractly, investors ask what drives returns in each stock market—and the key difference is that Europe lacks a significant tech sector, making valuations look similar when compared on an ex-tech basis.
“we at RBA we don't think like economists we think like investors. Everybody goes like what does that mean? Isn't it one and the same? No, it's not. So, an economist would say, 'What's the difference between the US economy and the European economy?' And then you hear all the stories about slow growth and everything else is going on in Europe. At RBA, we ask the question, what's the difference between the US stock market and the European stock market?”
The Fed now faces a genuine dual mandate dilemma for the first time in decades: tariffs may weaken the consumer, but inflation expectations are rising, forcing the Fed to choose between saving the consumer through stimulus (risking inflation) or fighting inflation (risking recession), a trade-off that was obscured for years when disinflationary forces made both goals compatible.
“they're caught between a rock and a hard place in that the economy might be weakening because of might weaken rather not be weakening but weaken because of tariffs. We may hurt the consumer on that. But at the same time inflation expectations are going up. Which do they choose now? They have to make a choice. Do they want to fuel inflation and maybe save the consumer or do they want to fight inflation and maybe cause a recession?”
Tariffs have a one-time price impact, not ongoing inflation: they increase prices at the moment of implementation but do not produce continued inflation unless tariffs are repeatedly raised.
“tariffs usually will probably have a positive impact on prices, but it's not ongoing inflation because there's a difference between a one-time increase in a price and inflation that goes on forever. And if you think about it, like if if you do a tariff and you set the tariff and you're done with the tariff, there probably will be some sort of increase in prices, but it's not something you expect to go on for the next 15 years or something like that”
Capital allocation and supply chain disruption follow complex, interconnected dynamics where removing a single input (like tariffing mangoes) creates cascading bottlenecks that rapidly escalate in unexpected ways, making outcomes difficult to predict.
“you can disrupt you disrupt or you take away a supply chain and stuff gets weird fast. And the result is usually there's nothing or there's higher prices or both.”
The 2024 stock market was the most narrow stock market seen since the Great Depression, with dominance concentrated in seven to ten companies (Magnificent Seven), which represents a pessimistic view of future growth prospects because such concentration only makes economic sense during depressions when survival, not growth, is the focus.
“Goldman Sachs pointed out that 2024's stock market was the most narrow stock market we had seen since the Great Depression”
The US debt penalty has been disguised from public awareness because absolute interest rates have remained low, so investors didn't notice they were being penalized with a risk premium relative to what rates should have been for a riskless borrower.
“Why hasn't anybody noticed that? Because the absolute rate of interest was so low. Nobody cared, right? They missed the point that it should have been lower, right? But we were being penalized.”
Building wealth is not difficult; it is simple and well-understood (diversification, dividend compounding), but investors fail to build wealth because they chase a perpetual siren song of something new, better, and sexier, causing them to crash on the rocks like Odysseus's crew.
“building wealth is not difficult. It's actually very easy. So why don't people do it? And the answer is that there's always a siren song of something new, better, sexier, something. to continue on the Greek mythology there. And then people go and they crash on the rocks, right?”
Individual investors should keep to the straight and narrow in core portfolios with only a small speculative allocation for riskier plays, rejecting the false promise of get-rich-quick schemes which never work.
“my my advice to individual investors has always been to keep to the straight and narrow, right? If you want to have a little a little puddle of money over here, that's your more speculative play money, that's fine. I get that. I mean, we all do that. That's fine. I have mine. Not going to share with you the stuff that I blow up in like everybody else, but that's fine, right? But the bulk of your wealth building should stick to the straight and narrow.”
The title of Bernstein's book from 25 years ago, 'Navigate the Noise: Investing in the New Age of Media and Hype,' remains more relevant today than when written, suggesting that the investor challenge of distinguishing signal from noise in an age of constant media chatter is perpetual and self-renewing.
“I wrote a book that was called navigate the noise. Get the subtitle. investing in the new age of media and hype. That was 25 years ago. Okay, so more more appropriate today than it was 25 years ago.”
Investors should align with financial advisors who share their values and investment temperament, or alternatively, find specialists who excel at the specific strategies they want to pursue (e.g., options traders), rather than trying to execute strategies outside their personality.
“it's that idea of like dogs that look like their owners. It's like investors or people who look like their adviserss or fund managers or whatever else. And this is a good thing. This is a good thing to find people and professionals and have professionals in your life that you have some type of shared values and an aligned aligned piece here for what you're trying to do”
Momentum investing, as practiced by retail investors following CNBC trends rather than systematic lookback strategies, leads to losses because investors focus on what to buy but forget the critical skill of knowing when to sell, resulting in a Wile E. Coyote cliff-fall dynamic.
“buying things is not where success comes from. It's actually knowing when to sell and and I think momentum investors always forget that”
Passive flows have some impact in making large companies bigger during narrow markets, but fundamentals, not passive flows, remain the primary driver of Magnificent Seven outperformance.
“I've kind of come around to the idea that I do think passive flows are having some impact in making these big companies a little bit bigger but but I still even those who believe in that I think would still argue that fundamentals has been the primary driver”
Highly leveraged ETFs (3x, 5x) are dangerous for retail investors, with history suggesting they end badly, though institutional investors can use them appropriately.
“we're in a world right now where maybe the ability to take those highly speculative bets is more than it's ever been because we just seem to be every time someone's like, I'm going to 3x leverages in the ETF, someone's like, I'm going to 5x leverages this ETF. is like they're competing to see who can leverage it more. And there's certain institutional investors who actually can use those things in the right way and do good things with them. But for your average retail person, I mean, it usually ends bad.”
The Magnificent Seven have historically delivered on fundamentals and kept pace with their valuations, so the high valuations are not unjustified—the real question for investors is whether they will continue to deliver strong fundamentals going forward relative to international and value opportunities.
“all of us that are value have to accept the fact that at least historically, I mean, the Mag 7 have delivered on the fundamentals. They've kept up this. You can't deny that part.”
The United States has lost up to 90% of its textile manufacturing capacity over the last 30 years, meaning tariffs on clothing (15-125%) will force consumers to either go without or pay significantly higher prices because there is no domestic substitute capacity.
“the United States has lost, depending on how you measure it, up to 90% of our textile manufacturing capacity”
Investors irrationally focus on lagging indicators like CPI and unemployment despite their backward-looking nature, likely because they are the most publicized and easily understood metrics rather than because they are predictive.
“investors for some reason have an amazing fascination with lagging indicators. I I I just don't get this. I mean it's one of the things that that when we go out as a firm and we market to people, we talk about the importance of leading indicators and how we follow them, blah blah blah blah blah. And and but everybody talks about lagging indicators.”
The narrow market concentration is not primarily driven by passive index flows, but rather by investor sentiment and speculation favoring a small number of tech companies.
“I've always taken issue with the notion that index funds drive narrow markets. I don't think that's actually right because if you're buying an index fund, the index fund buys everything in proportion. It's not like they're buying just the MAG 7 and therefore the MAG 7 are going up relative to everything else.”
Investing in an S&P 500 index fund or growth index fund is a colossal mistake during periods of narrow market concentration because those index funds are dominated by the seven to ten largest companies, which may not perform well given the abundance of growth opportunities in a much broader universe globally.
“if you're investing in an index fund or you're investing in a growth index fund, I think you're making a colossal mistake because those index funds are dominated by those seven or 10 names.”
The Federal Reserve's 2% inflation target seems antiquated given deglobalization trends, and a more reasonable secular inflation outlook would be 3 to 4 percent.
“the Fed is still using this 2% inflation goal. And and that seems incredibly antiquated uh to us at RBA. And so maybe instead of 2%, the Fed should be using three to four, something like that. I think that's a that's a reasonable secular outlook for inflation.”
The equity performance of Magnificent Seven companies should be viewed as consumer staples equivalents of the modern era because they provide essential services (search, cloud computing, AI infrastructure), reducing the risk perception compared to speculative tech companies.
“these companies are obviously that big of a part of the index because they're doing really really well. Um they've kind of become the consumer staples of of the new era. So it's not like I have a huge portion of my portfolio in these crazy risky companies. I have my huge portion of my portfolio in these like economic powerhouses.”
Value investing doesn't preclude growth opportunities—value investors look for situations where price hasn't caught up with fundamentals, which can include growth companies with solid underlying business expansion.
“He's looking for companies where the price hasn't kept up with the fundamentals. And in many cases with these companies, the prices have kept up with the fundamentals if you zoom out far enough.”
If the Fed starts cutting rates, investors should be scared because as a lagging indicator, the Fed should have started cutting sooner, which means multiple rate cuts will likely be needed—following the principle of 'always sell the first rate cut.'
“Michael Hartnett... he had I want to say it was um like you always sell the first rate cut. And it was this idea that when the Fed starts cutting, they're probably going to have to cut more than they expect. There's very few examples in history where if the Fed has finally gotten to the point where they're like, 'Well, we should cut rates.' You should probably start to be scared because as a leading a lagging indicator, they probably should have started doing that already”
Leading indicators, coincident indicators, and lagging indicators represent a classification of economic data based on their timing relative to GDP, with leading indicators predictive but imperfect, lagging indicators definitionally reactive, and most investor focus misallocated to lagging indicators.
“one of the things we used to talk a lot about was leading, lagging, and coincident indicators. So a leading indicator is one that actually leads GDP. A coincident indicator moves in tandem with GDP and a lagging indicator moves after GDP.”
If technology falls out of favor or enters a secular downturn, other sectors of the U.S. economy and global economy may perform better, making diversification across international and non-tech stocks a prudent hedge to Mag 7 dominance.
“If technology falls out of bed and if it becomes if it falls out of favor and goes into say let's say some kind of secular doldrum which I kind of think could happen, might these other sectors of the US economy, other sectors of the global economy perform better and therefore you'd want to be diversified around the world.”
There is nothing good to say about U.S. debt-to-GDP ratios and debt levels; high leverage at the government level mirrors the hazards seen historically with overleveraged hedge funds and Korean companies in the 1990s, which led to tremendous earnings volatility.
“There is nothing good to say about debt to GDP and the debt levels in the United States. I I I'm amazed that people like somehow try to twist this into something that's positive.”
AI creates multiple investment opportunities: the Mag 7 may have such a lead in AI that it exacerbates their market dominance, or AI could enable smaller companies to threaten the Mag 7, or AI could enable boring value stocks to improve margins through cost-cutting, an opportunity that is currently not being priced in because attention is focused on Mag 7 AI capabilities.
“AI is really interesting from a couple perspectives with this. One one is the idea that will the mag 7 you could argue they have such a lead in AI that it will just exacerbate their lead they have everybody else but you could also argue AI enables so much in smaller companies that maybe that threatens the mag 7”
Investors who hold total market index funds behave differently from those holding components (e.g., S&P 500 and Russell 2000 separately): component holders rebalance into underperformers, while total market holders do nothing, changing the dynamics of index flows.
“if I have total market fund as one fund or if I have S&P 500 and Russell 2000 my behavior is a little bit different with that because as small caps are underperforming and I'm rebalancing if I have Russell 2000 S&P 500 I'm buying Russell 2000 as part of that. If I have total market I'm doing absolutely nothing.”
Passive investing in index funds requires understanding which index to hold and when to hold it—not just an abstract 'buy and hold an index' approach—because the choice of index dramatically affects returns over decades.
“even if you're a truly a passive investor, you hold the market cap weighted, you know, of everything in the world... but the idea is there are a lot of indexes out there and and you can be passive investor and say I want to invest passively but I I don't want to do it that way”
The supply and demand curves taught in undergraduate economics, while simple, accurately capture the essential mechanism that increased competition reduces prices and decreased competition increases prices, regardless of complexity in application.
“I mean, I don't know if you know this about me, Matt, but I was uh an undergraduate economics major at uh the University of Connecticut. And like my supply and demand curves were just they were just exceptional... it is it's a variety of like individual things that rise up to an overall level and there's no right answer because it changes with every tip type of good you're talking about.”
Bernstein was a chief strategist during the 2008 financial crisis at Merrill Lynch and has been thinking about lessons from that era for 15-17 years, giving his insights unique depth rooted in that experience.
“Rich was the chief strategist around the financial crisis in the period right after when I was at Mel. I'm still thinking about stuff on the regular that I learned from him 15, 16, 17 years ago.”
Some investors hold both passive portfolios and additional concentrated positions (e.g., extra Nvidia) to increase exposure to mega-cap winners they believe in, balancing diversification with conviction.
“I've been talking to people who have the passive portfolio, I don't know, like a year or two years ago, and it's like, well, should I have the passive portfolio and then own more Nvidia on top of it or own more of the V7 on top of it? and and those are real conversations and they're conversations worth having and asking when you're seeing anything put up the numbers that it's putting up the way some of those companies were.”
The hosts and Bernstein are aware that this interview was conducted in April, and despite YouTube commenters criticizing the interview's age, the clips highlight evergreen investment lessons rather than time-specific tactical advice.
“this interview was done in April. And the goal of these is whenever we do these interviews, there's some evergreen lessons we think investors can take from that... despite the YouTube commenters who are going to comment, despite me saying this, that why is this interview old and what are you people doing and you two are idiots”
International stocks have had a strong run in recent months (as of the 2024 clip date), with Germany outperforming the U.S., suggesting a possible rotation from U.S. dominance.
“they've had a pretty good run this year. like they're they're doing exceptionally well. I know Dave Nodding pointed that out in your your latest click beta like Germany is the country country that's raging right now not the United States.”