All those new sports gamblers will have to place their bets somewhere. A Supreme Court decision that expands sports betting beyond Nevada could mean billions of dollars in new business for the casino industry. The court ruling in favor of New Jersey overturned a 1992 federal law that had prohibited sports betting in most states. Currently, Nevada is the only state where single-game wagering is legal. Now, other states will have the opportunity to legalize the practice. MGM Resorts said in a statement it “applauds” the decision, adding that it is “extremely well positioned” to succeed after the repeal of the law. Boyd Gaming, which also operates casinos throughout the country, said it is in an “excellent position to become a leading player in the growth and expansion of sports betting across the country.” Investors also saw potential in the news. MGM stock ticked up about 2%, Boyd rose about 4% and shares of Caesars spiked about 6% on Monday.