GCI estimates unregulated gambling wagers at $5.9tn in 2025
Gaming Compliance International estimates that unregulated online gambling generated $5.9tn in worldwide wagers in 2025, according to its report. It says the estimate spans several gambling formats and excludes prediction markets from its unregulated category, placing them instead in an “unacknowledged” segment; the report says regulated activity represents 22% of online betting volume.
The estimate offers operators and regulators a reported measure of market activity outside regulated online gambling.