Prediction markets drive 21% rise in betting ad spending in 2026

Verifying
  • Prediction markets Kalshi, Polymarket and Novig intensified competition with sportsbooks.
  • Ad spending rose 21% in the first seven months of 2026 from 2025.
  • Traditional sportsbooks' share fell from 76% in 2023 to 64% in 2026.
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