Miami International Holdings said its full-service futures commission merchant, Dorman Trading, has obtained clearing membership in The Options Clearing Corporation (OCC), a central counterparty and the world's largest equity derivatives clearing organization. MIAX increased Dorman's net capital by $40 million, bringing adjusted net capital to approximately $68 million as of Aug. 31, 2026. The company said OCC membership should improve cost and operational efficiency for clients trading Bloomberg equity index futures on MIAX Futures, which launched Tini B100 Index Futures, Tini B500 Index Futures and B500 Index Futures on May 17, 2026. MIAX said the additional capital supports Dorman's growth strategy and ability to serve more clients.