Margin

Margin in iGaming is used in multiple specific senses. Bookmaker margin is the structural pricing margin in sportsbook odds (synonymous with overround). House edge is the structural margin in casino games (complement of RTP). Operating margin is the broader financial measure of operator profit as a percentage of revenue. Each is calculated differently and tracks different aspects of operator economics. The relationship between product-level margin and realized margin matters for performance analysis. Sportsbook bookmaker margin is the theoretical pricing margin; realized hold percentage is the actual return after outcomes are settled. Casino theoretical house edge is exact (set by game math); realized hold over short periods varies with volatility. Operating margin combines product-level margin with operating cost structure to give the bottom-line economic measure. Discussions of "margin" in iGaming require specifying which dimension is meant.