100 Baggers

A hundred-to-one. One dollar turns into a hundred. Ten thousand turns into a million. That is the kind of return Christopher Mayer set out to study when he sat down with a database of every U.S. stock that traded between 1962 and 2014. He found three hundred and sixty-five of them — companies whose share prices multiplied by a hundred or more — and spent the rest of the book trying to figure out what they had in common, what an ordinary investor could have noticed in advance, and why almost nobody who owned them stayed long enough to actually collect the money.

The math alone is worth a minute. A stock compounding at twenty percent a year becomes a 100-bagger in roughly twenty-five years. At fourteen percent it takes a little over thirty-five. At ten percent it takes nearly fifty. So the door is open: a steady, unglamorous compounder held for a working lifetime gets you there. The catch is the lifetime part. The median time-to-100x in Mayer's study was sixteen years. Twenty was common. Thirty was not unusual. And if you sold somewhere in year twenty for a forty-bagger, you didn't get sixty percent of the prize — you got a fraction of it, because the last few doublings are where the real money is. Patience is the price of admission, and almost nobody pays it.

That is the book in a sentence: rare and patient. The work is figuring out the rare part well enough to deserve the patient part.

The Setup: Why a Book About 100-Baggers Even Makes Sense

Mayer is following in the footsteps of Thomas Phelps, whose 1972 book *100 to 1 in the Stock Market* did the same exercise for an earlier generation. Phelps was a financial writer at Barron's who got tired of chasing thirty and fifty percent winners and went looking for much bigger fish. Mayer's contribution is to redo the analysis with modern data, push the case studies forward into the smartphone era, and translate Phelps's old-fashioned advice into a framework that lines up with what investors like Warren Buffett, Charlie Munger, Chuck Akre, and Phil Fisher have been saying for decades.