Gambling Is No Longer Investing’s Evil Twin

I suspect many people yawned when the popular online brokerage Robinhood Markets Inc. announced it will offer sports and other prediction market derivatives, starting with betting on the NCAA March Madness basketball games.

After all, 22% of Americans and nearly half of men between the ages of 18 and 49 have made online sport bets, according to a recent poll. It’s likely that most of Robinhood’s 25 million customers (about 11 million of whom are active) are already wagering on sports and perhaps trading in other prediction markets. The Robinhood customers I know all bet on sports.

Nevertheless, this event is worth thinking about in broader historical terms at a time when the purpose and oversight of prediction markets are being debated. We live with dysfunctional legal and regulatory attitudes toward gambling and investment that are rooted in a morality few people accept today and that never made economic sense. These attitudes make it difficult to think about Robinhood’s March Madness plan rationally: Is there economic merit to such products? Should they be offered by brokerages and overseen by federal markets regulators, or left to the current patchwork of state rules that govern sports betting, or entirely reimagined?

The fundamental distinction between investing and insurance on the one hand, and gambling on the other, is that the first two reallocate the inherent risk of economic activity while gambling creates risk to have something to bet on.

Not everyone accepts this distinction. Many people claim markets are gambling. Trading on the New York Stock Exchange is no different from what is done in Las Vegas, and life insurance is just a bet that you will die before the policy expires. Other people, primarily quants, think gambling is trading. A bet is a bet whether made on Nvidia Corp. stock, frozen orange juice futures or South Carolina winning the 2025 Women’s NCAA basketball crown.