Ruby Rush

What is Ruby Rush?

The Mid-Atlantic struggles weren’t limited to New Jersey, as Pennsylvania revealed today (Sept. 17) that brick-and-mortar gross gaming revenue (GGR) from slot machines and table games totaled $280.3 million.

Pennsylvania casino revenue for August was almost 6% lower than a year ago, when the state’s casinos won $297.7 million from their physical slots and table games. Pennsylvania’s August 2026 struggles came despite the state having one more casino last month than it did in August 2025, as Happy Valley Casino only opened in April 2026.

In Maryland, the state’s six casinos combined to win $160 million in August, representing a 6% drop from the prior year. In Virginia, casino revenue from its five casinos was $97.6 million, almost 5% lower than August 2025.

What is Ruby Rush?

In fact, behind those brands, a whole new sector is taking shape. Data and streaming suppliers, specialist market makers and technology companies are quickly invading the space.

The investment banking and capital markets firm Jefferies said in a September report that sports had become prediction markets’ “most important liquidity driver”, with combo and parlay-style contracts accounting for an increasing share of activity. But the analysts cautioned that prediction markets are scale businesses with relatively low revenue yields, leaving their economics dependent on sustained liquidity, engagement and trading activity.

James Monk, founder of sports data and streaming provider Catalist Sports, has witnessed that dependence directly. Catalist supplies ITF tennis data to Kalshi and Polymarket and has an exclusive US sports-streaming agreement with Kalshi.

How to play Ruby Rush

The “too easy to get a licence” argument doesn’t necessarily hold up to scrutiny, to be fair. Andrew Bentley, co-founder and CEO of regulatory technology startup LiSense, is one who rejects the suggestion.

“There are significant checks on individuals and businesses before a licence is granted,” he says. “The UK Gambling Commission has set out what it expects. If you want a licence in the UK, you need to meet those expectations.”

Bentley believes regulated operators are genuinely trying to do the right thing but says some mistakes could be mitigated through better automation and continuous monitoring. Enforcement statements also provide lessons that businesses should use to test their own exposure.