INVESTORS Are Walking Into A TRAP Right NOW...DON'T FALL FOR IT...

“Sell In May and go away” has always been treated like a Wall Street cliché… but this year may be very different.

In today’s Wall Street Truthbombs, breaks down the REAL academic data behind the Sell In May effect, why the Efficient Market Hypothesis struggles to explain it, and why the current market setup could make this seasonal warning far more important in 2026.

With the S&P 500 at all-time highs, the CAPE ratio above 40, oil shock inflation risks growing, and the U.S. consumer showing structural cracks, this video explores whether investors are underestimating the downside risk ahead.

Topics covered:
Sell In May historical performance
Efficient Market Hypothesis explained
S&P 500 valuation risks
CAPE ratio and market bubbles
Oil shock & inflation concerns
Consumer stress and credit card debt
Federal Reserve rate cut outlook
Portfolio risk management in expensive markets
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Transcript

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Every year, Wall Street asks the same question in May. This year, for the first time in a long time, the data says it's actually the right question to ask. By the end of this video, you'll know exactly what the academic record says about the sell-in-may effect, why the efficient market hypothesis says it should not exist, and why this particular May, with the SP at an all-time high, a CAPE ratio above 40, and a consumer already showing structural stress may be the year the pattern actually really matters. Sell in May and go away. You've heard it. It's one of the oldest seasonal cliches in investing. The idea is pretty simple. Stocks tend to perform better from November through April and worse from May through October. So you sell in May, you go to the beach, you come back in November, and you beat the pants off the market. Here's what the financial media typically does with this every single year. They spend the first week of May writing, sell in May, myth or reality, and they put these segments on all day and they conclude that it's probably just a myth. Note that the market has gone up plenty of times in the summer, and then they move on. And the consensus takeaway is always the same. Market timing doesn't work. Just stay invested, buy and hold. Do not be the person who sold in May of 2019 or 2021 or 2023 and miss the 15% summer rallies. And here's the part I want to push back on. That consensus is partially right, but the way they arrive at it gets the analysis wrong in the way that actually matters this year. So let's take a look at that. But first, if you like this type of content, please click like and consider subscribing. It's important to be in the know about this stuff. Guys, I hope you do it here with us. Okay, here's what the actual academic record shows. And I know a bit about that academic record. And that sell-in-may effect, it's called, uh, also called the Halloween indicator, uh, was formally documented by researchers Bowman and Jacobson in 2002. They looked at data across 37 countries. In 36 of those 37 countries, the November through April period produced meaningfully higher returns than May through October. In the United States specifically, the S P 500 has averaged approximately 6.7% November through April versus roughly only 2% May through October, dating back decades. Now, that's not a rounding error. That is a consistent 4.7 percentage point seasonal gap, replicated across virtually every developed market on the planet and has persisted for more than 100 years of data. This is where the efficient market hypothesis runs into trouble. The EMH, which is the foundational theory that says markets are rational and self-correcting, tells us that if a pattern like this were real and exploitable, investors would trade against it and the arbitrage would literally kill it. In other words, it couldn't exist for too long if it actually did exist. An efficient market should not have persistent calendar anomalies. And yet this one has survived for over a century. Researchers have tried to explain it. Seasonal institutional activity, SEC filings run 17% higher in the winter months, insider trading is 22% more active, activist investors are 12% more engaged in the first half of the year, probably because they're playing golf all summer. And the financial system is itself more active when summer is not in session. Okay, because I guess now everyone's playing golf in the summer. None of these explanations, though, fully close the loop. But together they suggest that this is a structural feature of the market behavior, not a fluke. Now, here is where I want to slow down a little bit. I know it gets a little bit complicated and I'm talking fast because this is the part the sell-in-May crowd almost always gets wrong. Okay, the pattern is real. The mechanical strategy that follows from it, though, is not. An investor who put$1,000 into the SP 500 in January 1976 and held through everything would have$294,795 today. That's not too shabby. An investor who followed the sell-in-may strategy, exiting every April 30th and re-entering every November 1st, would have only$46,351. Now, I wouldn't mind having that either. However, there's a big difference, isn't there? Well, the same starting point, a six to one gap in final wealth. That's notable. Well, why? Well, because the strategy sacrifices compounding, our biggest friend in investing. It misses the years when May through October outperforms and it creates tax events every time you exit. The seasonal anomaly exists. The robot that acts on it every year, though, gets literally crushed. Now, let me give you the current setup. The SP 500 closed at an all-time high of 7382 on May 7th. That is not a typo, guys. All-time high. The Schiller-CAPE ratio, which measures valuation against 10 years of inflation adjusted earnings, is sitting approximately at 40. The long-run historical average of that ratio is 17.38. We are at more than double the historical average. To put that in context, the current CAPE is higher than it has been about 87% of the time over the past 40 years. When you own stocks at a CAPE of 40, you're paying a premium that assumes decades of strong earnings growth. And any surprise to the downside gets disproportionately punished. Now, layer on the macro environment. The Iran war began February 28th. The Strait of Hormuz, which we've all heard of and carries roughly 20% of global oil supply, has been partially disrupted. Gas prices are above$4.50 nationally. The Federal Reserve has been expected to cut rates in 2026. It had been, and those cuts are now essentially off the table until well into 2027 because of the oil shock and the reacceleration of inflation. That simply means higher for longer rates in a market priced at Cape 40 at a moment when consumer balance sheets are showing documented distress. This week, the CEO of Kraft Heinz said consumers are literally running out of money toward the end of the month. Whirlpool said appliance demand is at levels comparable to the global financial crisis. The Federal Reserve Bank of New York published research showing lower-income households are rationing gas and still spending more at the pump because price increases are overwhelming their ability to cut. And credit card balances stand at a record$1.28 trillion. This is the consumer walking into the historically weaker half of the calendar year. And here's how I think about this for your portfolio. Sell in May as a mechanical rule is a bad idea, guys. And the data is pretty clear on that. The pattern does not fire every year with the same force. And buy and hold has beaten the seasonal timer by six to one over a 40-year horizon. Now, I'm not telling you to sell everything and sit in cash. What I am telling you is this when the seasonal headwind overlaps with a CAPE ratio of 40, rate cuts off the table, a consumer already showing structural cracks, an active geopolitical disruption with no resolution timeline, and a market at all-time highs, the risk reward of adding new equity risk at this specific moment is asymmetric, but in the wrong direction. The investors who outperform in this kind of environment are not the ones who nail the seasonal timing call. They're the ones who use historically elevated valuation as an opportunity to reassess concentration risk. They trim positions that require perfect macro outcome to justify their multiples, and they make sure that their portfolio does not depend on a consumer who is already running out of money to keep spending. The sell in May crowd is asking, should I sell? The right question is: if this goes wrong, do I know exactly why I what I own and why? And at what price does my thesis break? So your truth bomb for today is this sell in May is a real seasonal anomaly that the efficient market hypothesis simply can't explain. But it's not a trading rule, it's a risk management reminder. And in a May where the SP is at an all-time high, the CAPE is at 40, rate cuts are gone until 2027, and the consumer is already cracking. You do not need a calendar effect to know that this is not the moment to add too much risk and you don't fully understand. Join me every day at Wall Street Truth Bombs where I drop them right here before the market figures them out. My dear Truth Bombs community, we're rolling out a new live stream designed to keep you ahead of the market. It's called the Radar Report, and it comes out every Thursday at 4:30 p.m. EST, Wall Street time. No spin, no delay, just the raw analysis you know you get from me. The shadow data, Fed moves, inflation shocks, geopolitical risks. Who knows what I'm gonna show you next? We're gonna decode it as it happens. And this time you're gonna be part of it. Join me, ask me your questions and challenge the narrative because that is how we all win together. Because in this market, if you're reacting late, you're already losing.