It doesnāt take brains to spot a bubble, but itās almost impossible to know whether youāre in 1996 or 1999, and thatās where most money is made.
On December 5, 1996, Fed chair Alan Greenspan famously mused about āirrational exuberanceā in stock prices. Many thought that warning marked the top, and stocks fell the next day.
But 1996 turned out to be just the early innings of the dot-com mania, and those who bailed in late 1996 missed one of the most impressive five-year S&P 500 stretches on record. By mid-2000, the S&P 500 had more than doubled. Even at the dot-com trough, anyone who stayed in was still in the green.
By almost every yardstick, the market looks expensive today, including two of the most-watched indicators.
The forward P/E ā Wall Streetās go-to measure that shows what youāre paying today for a dollar of expected earnings over the next 12 months ā is at its highest since the dot-com bust, excluding a few brief spikes during Covid.
Then thereās the Shiller P/E, Buffettās favorite valuation measure. It compares prices to real 10-year average earnings, offering a longer-term perspective that isnāt distorted by rosy earnings forecasts.
Just like forward P/E, the Shiller P/E today hovers at the highest level since the dot-com era.
Anecdotal data doesnāt help either, especially around AI. Some engineers are landing $100 million packages, and thereās even a rumor of a $1 billion hiring bonus, the biggest on record, matching the GDP of some countries.
And then thereās last weekās Oracle episode, one of the most eye-popping single-day tech surges of the decade. After it touted a multifold jump in AI infrastructure backlog, the near-trillion-dollar company jumped over 30% in a day.
The catch is The Wall Street Journal reported last Wednesday that OpenAI has pledged to pay Oracle $300 billion over roughly five years. If accurate, that would imply OpenAI accounts for nearly all of Oracleās current long-term backlog.
Layer on the politically flavored, pick-a-number pledges for data-center build-outs from Big Tech and trade partners, including the UAEās touted $1.4 trillion plan for U.S. āAI infrastructure,ā and you have a house of cards built more on promises than earnings.
In fact, by D.A. Davidson analyst Gil Luriaās estimate, top AI software companies ā including OpenAI, Salesforce, and Adobe ā have only generated tens of billions in revenue from AI.
Much like the fiber build-out of the internet era, todayās AI investments are largely FOMO-driven and front-loaded on the assumption that AIās exponential adoption curve will hold.
No line captures this āblank checkā spending better than Google CEO Sundar Pichaiās remark during Alphabetās earnings call last August.āWhen you go through a curve like this, the risk of underinvesting is dramatically greater than the risk of overinvesting.ā
Some of that overinvestment will eventually have to bleed out, but when ā and where ā only time will tell. As Wells Fargoās Ohsung Kwon put it, āMusic stops when AI capex stops. Enjoy the party.ā
But AI isnāt the only version of āthis time is differentā today. As Howard Marks wrote in a recent memo, American exceptionalism is also at play. Thereās āThe belief that, for most investors, there really is no alternative to the U.S. markets.ā
Then thereās the wealth effect and the ābuy the dipā mentality of a new generation of investors.
āThe last sustained market correction ended in early 2009, which means itās been more than 16 years since risk-taking was seriously punished and buying the dips didnāt work. In practice, no one under about 35 ā pros or amateurs ā has ever lived through a prolonged bear market,ā he said.
So the question isnāt whether itās a bubble. The real, trillion-dollar question is whether itās 1996 or 1999. Remember, the Shiller P/E sat at a 60-year high from 1995 to 2000, one of the best stretches in stock market history.
