Episode summary

The S&P 500 is Just 46 Stocks. 89% of the Economy is Flatlining | What We Learned This Week

Excess Returns · · Hosts: Jack Forehand, Matt Zeigler · Guests: Ian Cassel, Chris Mayer, Jim Paulsen, Elena Khoziaeva

The S&P 500 is Just 46 Stocks. 89% of the Economy is Flatlining | What We Learned This Week – Excess Returns

Summary

The episode argues that a lot of what looks like market wisdom depends on how you frame the data. Ian Cassel and Chris Mayer revisit Lee Freeman-Shor’s work to show that elite stock pickers can be right only 49% of the time and still win big because outliers and position sizing matter more than a high hit rate. The hosts connect that idea to their own work: what matters is often not consistency on every trade, but the magnitude of the winners and the ability to hold them through volatility.

Jim Paulsen’s inflation framework pushes back against 1970s comparisons. He says today’s economy is far more supply-constrained and labor-growth constrained than demand overheated, making the current backdrop more disinflationary than the 1970s. He argues that recent inflation shocks have mostly come from temporary supply disruptions, tariffs, and commodity shocks rather than a durable demand boom.

The episode also covers factor investing and market structure. Elena Khoziaeva describes Bridgeway’s research suggesting the small-cap premium looks stronger if investors exclude IPOs and former large caps that have fallen into the small-cap universe. Later, the hosts discuss how the S&P 500 may effectively behave like a portfolio of just 46 stocks, reinforcing the idea that concentration risk is much higher than many investors assume.

Key takeaways

  • Ian Cassel’s point is that great stock pickers can have a 49% hit rate and still outperform if their winners are much larger than their losers.
  • Jim Paulsen argues the current inflation backdrop is not like the 1970s because labor-force growth is weak and recent price spikes have mostly been supply-driven and temporary.
  • Bridgeway’s Elena Khoziaeva says the small-cap premium improves when investors exclude IPOs and stocks that were once large caps but later became small.
  • The S&P 500 may effectively be driven by fewer than 50 stocks, so index investors may be taking more concentration risk than they realize.
  • Chris Mayer argues vertical market software may be more resilient to AI disruption because it is mission-critical and deeply embedded in customers’ workflows.

Notable quotes

“the best stock pickers in the world that he allocated to, they were right 49% of the time”

— A speaker on Excess Returns

“There's no way we get excess demand out of 1%. We're actually growing labor force in the last several years about a half a percent uh a year”

— A speaker on Excess Returns

“So the name of the paper is I know what you did last summer”

— A speaker on Excess Returns at 24:11

“it's effectively less than 50 companies in S&P 500 are driving the returns”

— A speaker on Excess Returns

“You think you're investing in a diversified market index with 500 names, but that's not the case”

— A speaker on Excess Returns

How the episode opens

So it's effectively less than 50 companies in S&P 500 are driving the returns. So what does it mean for investor? It means that you think you're getting diversification. You think you're investing in a diversified market index with 500 names, but that's not the case.

We all look at free cash flow, look at the margins, we try to get a handle on competition. Everybody does the same kind of thing. — A lot of that — Is out there. I think, you know, sometimes I think the edge I really have is just the ability to look out longer than most people and hold on longer.

There's no way we get excess demand out of 1%. We're actually growing labor force in the last several years about a half a percent uh a year. There's no way that's going to create excess demand over supply capabilities. This is a hugely disinflationary environment we're in where the 70s was very much the opposite. Welcome to the XS Returns weekly rap. I'm Jack Forehand, joined as always by my good friend Matt Ziggler. Uh Matt, how's it going?

It's going great. You drinking your Cash Patel signature brand bourbon yet? You know? — Yeah, I haven't got that yet. But uh I'm also like I bourbon is something I can't handle that. Uh it doesn't go well. — Um so I'm more of a tequila guy. Bourbon is not my thing.

Ah well, you know, I'm sure we got another uh government official who's in the tequila trade. — We'll find one. Well, the all-in guys, as you saw, the all-in guys are in the tequila trade. — Oh, there you go. We'll get some outrageously priced tequila bottle.

There you go. There you go.

From the episode’s captions: roughly the first two minutes, lightly cleaned. Keep watching on YouTube →

Topics

  • stock picking performance
  • inflation risk
  • ai software disruption
  • small cap premium
  • market concentration

Companies and tickers mentioned

  • Bridgeway

Watch the episode

Watch “The S&P 500 is Just 46 Stocks. 89% of the Economy is Flatlining | What We Learned This Week” on YouTube

Summary, takeaways and quote selection by Octagon. Quotes are short excerpts; the full conversation is in the episode.

More from Excess Returns

All Excess Returns episodes →

Excess Returns, this episode and its artwork belong to Excess Returns. Octagon is not affiliated with the show; this page is an independent summary.