IN THE ONGOING battle between those who believe that the stock market is in a bubble and those who don’t, you may have heard mention of something called CAPE, short for cyclically adjusted price-earnings ratio. Among market indicators, it has the strongest track record in predicting future market returns.
What does the CAPE ratio say about today’s market? It’s flashing red. According to CAPE, the U.S. stock market is more overpriced today than it has been at any time since the 2000 market peak.

ARE FINANCIAL MARKETS in a bubble? It’s a question I’ve never liked. I believe stocks and bonds are fairly valued most of the time, which means it’s extraordinarily difficult to beat the market averages and our best bet is to buy index funds.
But at the same time, during my adult life, there have been three key occasions when markets lost touch with reality: Japanese stocks and real estate in the late 1980s, technology stocks in the late 1990s and housing in the mid-2000s.

FOR MORE THAN a year, veteran investment manager Jeremy Grantham has been arguing that the U.S. stock market is in a bubble. And not just an ordinary bubble, but “an epic bubble… one of the great bubbles of financial history, right along with the South Sea bubble, 1929, and 2000.”
And yet, despite Grantham’s concerns, the market has only continued to march higher. In a recent interview, Grantham reiterated his concerns in even stronger terms.

ECONOMIST JOHN Maynard Keynes once observed that, “It is better for reputation to fail conventionally than to succeed unconventionally.” This is probably true in many realms. It’s certainly true in the investment world.
As the last 12 months have demonstrated, extreme and unexpected events can and do happen. But analysts whose job it is to make economic forecasts rarely go too far out on a limb. Sure, there are some forecasters who will take a chance with a view that’s far outside the consensus.

LAST YEAR WAS MY first bear market. I’ve been thinking a lot about it and about the astonishing stock market recovery that followed, so I’m better prepared for next time around. Here are three lessons I learned in 2020:
Lesson No. 1: Buy aggressively when markets fall. When the market crashed last February and March, I invested more in stocks. But I regret not having invested a lot more, despite having cash available.

THE CAPITOL WAS invaded by an angry mob 11 days ago. A week later, the House of Representatives voted to impeach the president. But if you’d been looking only at the stock market, you would have no idea.
Not only is the market higher today than it was the day before this all started, but also the VIX—the market’s “fear gauge”—is lower. From the perspective of the stock market, it’s been an ordinary few weeks.