Crypto traders don’t pay much attention to Wall Street advice – maybe they should

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Bitcoin supporters talk about the cryptocurrency reaching $ 1 million or even its total value reaching $ 300 billion.

The most enthusiastic “monkeys” claim to have a large chunk of their savings in shares of AMC Entertainment Holdings and post the hashtag # AMC500K – indicating their belief that the movie chain’s shares will reach $ 500,000 in “mother of” all short cuts ”.

Leaving aside the obvious problem that these lofty values ​​for bitcoin and AMC are 15 and 12 times the size of the entire U.S. economy, respectively, even those with smaller goals and large personal bets. ignore a classic formula for wealth building used by investment legends. like Warren Buffett and Bill Gross.

The Kelly Criterion, developed by Bell Labs scientist John L. Kelly Jr. in the 1950s, tells you how much to stake for the highest rate of wealth growth without losing everything.

When to invest less?

Investors who are very convinced of their analysis will make seemingly racy bets when they use Kelly – so much so that some investors use a “half-Kelly” formula. After all, big losses on what almost seemed like a sure thing also come with business risk, like losing clients.

Even though investors in crypto and meme stocks often respond to no one but themselves and have huge expectations, they shouldn’t bet the farm either. They should actually invest less as their expected value increases according to a counterintuitive article on Kelly betting published by Victor Haghani and James White of Elm Wealth, a research-oriented wealth manager and advisor.

They start with a person who is faced with a 50/50 draw. Heads would mean losing everything and tails would mean some level of return. As the payout increases, so would the percentage of wealth wagered optimally, but only at the beginning. The expected result is the average of 50% of zero and 50% of their goal. Should they bet more, however, if their “upside target” is 15,000 times their investment instead of just 15 times?

No. A really gigantic return would make us rich even if we only own a tiny part of the investment. We would be risking money unnecessarily by buying more. In the intentionally simplified example of Haghani and White, the highest share of wealth to bet is around 17% once the payout is between four and eight times your starting investment. From there, he declines.

AMC Investors

AMC investors may not be putting the odds of bankruptcy in half, but neither are they. If some really believe that AMC’s stock will be worth half a million dollars, then 20 stocks costing around $ 500 at today’s price will be worth a fortune of $ 10 million. Yet social media is teeming with people using the hashtag who say they’ve bet tens of thousands – a large chunk of their wealth – on the stock, and that they won’t sell. Big bets are rarely a good idea, but especially not if you believe in an astronomically high price target.

Well-paid executives make the same mistake. Michael Saylor, CEO of software company Microstrategy, asked the company to borrow money to buy bitcoin – a stash worth around $ 5 billion. The market value of the entire company was never higher before it started to accumulate cryptocurrency.

His net worth would be sharply negative if bitcoin fell to zero, or even fell back to what it recovered five years ago. With Saylor’s stake in the business and personal bitcoin holdings making up a large chunk of his estimated $ 2.2 billion wealth, according to Forbes, the only way his bet makes sense is if there isn’t. has virtually no chance of this happening.

You only live once, but you only need to go wrong once to lose an all-or-nothing bet.

Write to Spencer Jakab at [email protected]

This article was published by Dow Jones Newswires

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