The U.S. Supreme Court struck down the federal ban on sports betting in a 2018 decision, opening the doors for states to legalize it if they wish. Since then, 38 states and the District of Columbia have legalized sports betting in some form, many allowing online bets. Missouri is set to become the 39th state in December.

Six top sports betting stocks in 2025
As more states legalize sports betting, the market is growing quickly. Not only are new states easing restrictions, but betting is also growing more popular each year in states that have already legalized it. If you want to invest in this rapidly growing industry, here are six options to consider:
1. Flutter Entertainment

NYSE: FLUT
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NASDAQ: DKNG
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3. MGM Resorts

NYSE: MGM
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4. Caesars Entertainment

NASDAQ: CZR
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6. Roundhill Sports Betting & iGaming ETF
For investors looking for broad exposure to the sports betting and online gaming industry without picking individual stocks, the Roundhill Sports Betting & iGaming ETF (BETZ +0.39%) invests across a portfolio of stocks in the industry. The fund currently holds more than 30 positions, including several of the names mentioned above. And its expense ratio of 0.75% isn't too high for a specialized index fund.
Investments include sportsbooks, technology for enabling online sportsbooks, casinos, and online gaming. It's also heavily invested in international stocks, which comprise more than two-thirds of its holdings. That could change, however, as the U.S. market for sports betting grows relative to the rest of the world.
A small position in this ETF could be worth a bet for investors looking for a simple way to gain exposure to sports gambling.