PRINCETON, N.J., Jan. 18, 2022  /PRNewswire/ — Miami International Holdings, Inc. today reported December and 2021 full-year trading results for its U.S. exchange subsidiaries – MIAX®, MIAX Pearl® and MIAX Emerald® (together, the MIAX Exchange Group™) and Minneapolis Grain Exchange (MGEX™) with multiple market share and volume records reached over the course of the year.  December […]