iGaming Market Report 2026: Size, Growth & Affiliate Outlook

This report brings together the most recent figures published by named, credible public sources on the size and growth of the regulated online-gambling market, and reads them through one lens: what they mean for operators who acquire players through affiliate and partner channels.

It is a market-context report, not a first-party benchmark. The headline numbers below are exactly as published by Grand View Research, the UK Gambling Commission, and the American Gaming Association - each is attributed and linked in the Methodology and Sources sections. Track360 has not modified the figures.

A note on the affiliate angle: granular, primary-source statistics on the affiliate channel specifically - its share of acquisition spend, or the precise CPA/RevShare/hybrid split across programs - are not published as verifiable research; the figures that circulate appear only in vendor marketing content. Rather than repeat unsourced claims, this report presents the verified market context and Track360 operational interpretation. In regulated iGaming, restrictions on paid advertising push a large share of acquisition into performance and affiliate channels, which is why affiliate-program economics track closely with the market growth shown here. That framing is Track360 perspective, offered as context, not as a cited industry statistic.

The regional read is clear in the data: Europe is the largest online-gambling region, while US regulated iGaming is the fastest-growing major segment. For operators, that maps to where affiliate programs face the most competition (mature European markets) versus where they are scaling fastest (newly regulated US states).