US commercial gaming revenue increased 4.6% year over year in May 2026, according to the American Gaming Association's latest Commercial Gaming Revenue Tracker. The headline number masks a widening split inside the market: physical casinos continued to grow, iGaming remained the fastest-expanding vertical, and regulated sports betting moved backward for the month.
Traditional casino gaming generated $4.68 billion, supported by $3.39 billion from slot machines and $933 million from table games. Sports betting revenue fell 1.8% to $1.34 billion, while iGaming revenue rose 14.7% to $1.03 billion.
May 2026 Revenue at a Glance
Traditional casino revenue rose 4.5% from May 2025. Slots increased 4.6%, while table games advanced 3.9%. Those figures show that the largest and most established part of the commercial gaming market still supplied dependable growth even as newer digital verticals produced more volatile results.
Sportsbooks accepted $12.06 billion in wagers, 0.4% less than a year earlier, and generated $1.34 billion in revenue. The AGA said the hold rate was 16 basis points lower than in May 2025. Excluding newly launched Missouri, national handle declined 2.7%, making the slowdown more pronounced than the top-line figure suggests.
Why the Casino Floor Remains the Revenue Anchor
Slots alone produced almost three quarters of traditional casino revenue in May. Their 4.6% increase therefore mattered more to the national result than growth in any single smaller vertical. Table games also contributed, but their $933 million total remained well below the slot segment's scale.
For operators, the mix is constructive: growth was not limited to one premium product or one digital channel. It came from the broad casino floor, where recurring local play and destination traffic can reinforce each other. The result also suggests that physical gaming continues to coexist with online expansion instead of being displaced by it at the national level.
Sports Betting Shows a Different Risk Profile
The 1.8% sports betting revenue decline was only the second monthly contraction of 2026, according to the AGA. Betting revenue is naturally sensitive to sporting calendars, customer outcomes and hold, so one month does not establish a long-term reversal. Even so, falling handle outside Missouri points to a demand-side pressure that deserves attention.
The contrast with the casino floor is sharp. Slots and tables generated growth from an established customer base, while sportsbooks faced both weaker economics and competition from products that the regulated gaming industry argues operate outside state gambling rules.
Prediction Markets Become Part of the Competitive Story
The AGA linked the softer regulated sports betting performance to the rapid expansion of sports event contracts on prediction-market platforms. This is the association's interpretation and policy position, not proof that every dollar of sportsbook decline moved directly to those platforms. Still, the scale cited by the AGA makes the issue difficult for operators and regulators to ignore.
According to the tracker, Kalshi alone handled nearly $15 billion in sports betting volume, while prediction-market sports products continued to operate outside state gaming regulatory systems. The dispute is therefore about more than market share: it also concerns licensing, consumer protections, responsible-gaming rules and who collects taxes from sports-related wagering activity.
iGaming Keeps Growing, but Momentum Is Cooling
Online casino revenue reached $1.03 billion, up 14.7% year over year. That was the strongest growth rate among the main verticals, although the AGA noted that the pace has slowed in recent months and no new state iGaming market has launched since 2024.
This creates a two-part digital picture. Existing online casino states continue to deepen their markets, but the absence of new state launches limits the next source of step-change growth. The sector remains strong, yet future expansion depends increasingly on performance within the current regulatory footprint.
The Tax Question Raises the Stakes
Regulated commercial gaming generated $1.53 billion in state gaming taxes in May, only 0.7% more than a year earlier. Sports betting tax revenue fell 2.4%. The AGA argues that state collections would be higher if sports prediction-market products, sweepstakes casinos and skill machines were taxed and regulated inside state gaming systems.
That framing reflects the regulated casino industry's advocacy interests, but it identifies a real policy trade-off. States must decide whether sports event contracts are federally regulated financial products, gambling products subject to state control, or something requiring a new hybrid framework. Until that question is settled, comparable products can face very different taxes and consumer-protection obligations.
What Investors, Operators and Regulators Should Watch
Casino operators will watch whether the May strength in slots and tables continues through the summer travel season. Sportsbook operators will focus on handle excluding new markets, hold normalization and whether prediction-market volumes affect customer acquisition costs or wagering activity.
Regulators, meanwhile, will be looking beyond gross revenue. The more important questions involve tax leakage, advertising standards, age controls, responsible-gaming tools and the division of authority between state gaming agencies and federal commodities regulation.
Bottom Line
May was positive for US commercial gaming overall, but it was not a uniform growth story. The casino floor remained the industry's financial anchor, iGaming delivered the fastest percentage gain, and regulated sports betting encountered a softer month at the same time prediction-market competition intensified.
The immediate headline is a 4.6% national revenue increase. The more consequential story is the divergence beneath it: stable physical casino growth on one side, and a rapidly changing digital wagering and regulatory landscape on the other.
Primary source: American Gaming Association — Commercial Gaming Revenue Tracker, published July 16, 2026.
