RSI Online Gaming · iGaming · Sports betting · Small cap · Thesis updated June 14, 2026

Profitable growth is now the RSI story

Q1 2026 revenue rose 41% to $370.4 million, a clear step up from 2025 growth.
Sales and marketing fell to 13% of revenue, showing the company is growing without buying every new customer.
Net income was $26.2 million in Q1 2026, up from $11.2 million a year earlier.
Latin America improved after a Colombian court ruling let RSI cut player bonuses tied to the VAT fight.
The bear case is valuation and user quality: new players must turn into higher-spending, loyal players.

01 Running thesis

Growth with less promo spend

RSI has moved from a growth story that needed heavy marketing into a growth story that is showing real operating leverage. Operating leverage means revenue is rising faster than costs. In Q1 2026, revenue grew 41% year over year to $370.4 million, while sales and marketing was only 13% of revenue, down from 16% a year earlier.

That matters because online betting can be expensive to scale. Many rivals spend a lot on ads, sign-up offers, and free bets. RSI is showing that its BetRivers, PlaySugarHouse, and RushBet brands can keep adding users without letting promotions eat the model.

The best new evidence came from Latin America. A Colombian Constitutional Court ruling found the temporary VAT on online betting unconstitutional, which let RSI reduce player bonusing. Latin American ARPMAU, or average revenue per monthly active user, rose year over year after that pressure eased.

The stock still has a price problem. Strong execution is already visible, so the market may expect a lot. The key test now is whether the big new U.S. and Canada player cohorts from late 2025 and early 2026 spend more as they mature, rather than keeping blended ARPMAU under pressure.

Apr 2026▲Q1 2026 revenue grew 41% to $370.4 million while sales and marketing fell to 13% of revenue. Latin America ARPMAU improved after the Colombian court ruling helped RSI reduce bonusing.

Feb 2026▲The 2025 10-K showed revenue up 23% to $1.134 billion and marketing spend down to 15% of revenue. Colombia risk also eased after the temporary VAT decree was preliminarily suspended.

Oct 2025▲Q3 2025 revenue grew 20% and sales and marketing stayed at 14% of revenue. The Colombian VAT still hurt Latin American ARPMAU, but the issue was already known.

Jul 2025▲Q2 2025 revenue grew 22% and sales and marketing fell to 14% of revenue. The quarter added confidence that RSI could grow while spending less on customer acquisition.

May 2025→Q1 2025 confirmed the profit turn, with revenue up 21% to $262.4 million and net income of $11.2 million. The new Colombia VAT became a real headwind for Latin America ARPMAU.

Feb 2025▲Full-year 2024 revenue grew 34% to $924.1 million, and adjusted EBITDA rose to $92.5 million. A possible 19% Colombia VAT was added as a new regulatory risk.

Oct 2024▲The initial thesis was built after Q3 2024 revenue grew 37% year over year. RSI was already showing better margins as advertising and promotions fell as a share of revenue.

02 Business model

House edge, odds, and small extras

RSI makes most of its money from real-money online casino and online sports betting. In online casino, customers play games like slots and table games against the house, and RSI keeps the house winnings over time. In sports betting, RSI sets odds with a built-in margin, so it expects to keep a small spread across many bets.

In Q1 2026, online casino and online sports betting produced $368.9 million of revenue. Retail sports betting was $0.3 million, and social gaming was $1.2 million. So the business is really an online real-money gaming company, with retail and social gaming as smaller support lines.

The model breaks if customer acquisition gets too costly, if states or countries raise taxes, or if customers do not stay active after bonuses end. It also depends on gaming licenses, market access deals, payment systems, responsible gaming controls, and sports betting technology partners.

03 Product portfolio

What players actually use

Cash cow

Online casino

This is the core profit engine. RSI offers slots, table games, and in-house titles under brands such as BetRivers, PlaySugarHouse, and RushBet.

Growth engine

Online sports betting

Sportsbook gives players pre-game and in-game bets, parlays, and live features. RSI uses Kambi Group for risk and trading tools, so partner execution matters.

Steady

Retail sports betting

RSI provides sports betting services for land-based casino partners. It is much smaller than the online business, but it helps with market access and local partnerships.

Option

Social gaming

Social games use virtual credits, some of which users can buy where allowed. The bigger role is customer acquisition for real-money products.

Growth engine

RushBet Latin America

RushBet is RSI's Latin American brand across markets such as Colombia, Mexico, and Peru. The region grew fast in Q1 2026 after the Colombian VAT pressure eased.

04 Business segments

Two revenue regions

United States and Canada76%growing fast

Latin America, including Mexico24%growing fast

The mix uses Q1 2026 geographic revenue from the 10-Q. RSI reports one operating segment, so these are revenue regions, not separate operating segments.

05 Risk factors

What could break the run

New players stay low value

High impact · Medium odds

U.S. and Canada ARPMAU fell year over year in Q1 2026 because many new players joined. That is normal during a growth push, but it becomes a problem if those players do not bet more over time. Lower player value would pressure revenue quality even if MAUs keep rising.

We watchU.S. and Canada ARPMAU stabilization, plus management comments on cohort maturation.

Marketing arms race returns

High impact · Medium odds

RSI's bull case depends on sales and marketing staying low as a share of revenue. In Q1 2026, it was 13% of revenue. If rivals restart aggressive promotions, RSI may have to spend more to defend share.

We watchSales and marketing moving back above 15% of revenue for more than one quarter.

Colombia tax risk comes back

Medium impact · Medium odds

The Colombian VAT overhang improved after the Constitutional Court ruling helped RSI cut player bonusing. But the broader risk has not fully disappeared. A new tax decree, appeal path, or fresh regulatory move could hurt Latin America revenue and margins.

We watchAny final Colombian Constitutional Court ruling or new online gaming tax proposal in Colombia.

High expectations in the stock

Medium impact · High odds

RSI's business results are strong, but that can make the stock more sensitive to any slowdown. If revenue growth drops or ARPMAU weakens, investors may punish the shares even if the company remains profitable. This is the main reason the page should not read like a victory lap.

We watchRevenue growth falling below 30% while valuation still prices in fast growth.

Sportsbook technology dependence

Medium impact · Low odds

RSI uses Kambi Group for risk and trading on its sportsbook. A partner issue, pricing change, or product gap could affect the sports betting experience. Online casino is the larger value driver, but sportsbook quality still matters for brand and cross-sell.

We watchDisclosures about Kambi, sportsbook outages, or changes in major technology agreements.

06 Quick answers

In one breath

How does Rush Street Interactive make money?

RSI mainly makes money from online casino and online sports betting. Casino revenue comes from house winnings, while sportsbook revenue comes from odds that include a built-in margin.

What brands does RSI operate?

RSI uses BetRivers and PlaySugarHouse in the U.S. and Canada. In Latin America, it uses the RushBet brand.

Why did Latin America improve in Q1 2026?

RSI said Latin American ARPMAU rose because it reduced player bonusing after a Colombian Constitutional Court ruling. That ruling found a temporary VAT on online betting unconstitutional.

What is the main risk for RSI now?

The biggest operating risk is that new users do not become higher-value players. The biggest stock risk is that strong growth is already expected, so any miss could hurt sentiment.