Miami International (NYSE:MIAX) EVP Edward Deitzel Sells 11,000 Shares

Miami International Holdings, Inc. (NYSE:MIAX) EVP Edward Deitzel sold 11,000 shares of Miami International stock in a transaction on Thursday, September 3rd. The shares were sold at an average price of $42.21, for a total transaction of $464,310.00. Following the completion of the transaction, the executive vice president directly owned 119,601 shares in the company, valued at $5,048,358.21. The trade was a 8.42% decrease in their ownership of the stock. The sale was disclosed in a document filed with the Securities & Exchange Commission, which is available at this link. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan.

Edward Deitzel also recently made the following trade(s):

• On Tuesday, August 4th, Edward Deitzel sold 11,000 shares of Miami International stock. The shares were sold at an average price of $45.78, for a total value of $503,580.00.
• On Monday, July 6th, Edward Deitzel sold 11,000 shares of Miami International stock. The stock was sold at an average price of $42.04, for a total transaction of $462,440.00.

Miami International Stock Down 0.5%

Shares of Miami International stock opened at $42.50 on Friday. The firm has a market cap of $4.22 billion and a price-to-earnings ratio of 55.20. The company’s 50-day simple moving average is $42.81 and its 200-day simple moving average is $43.05. Miami International Holdings, Inc. has a 52-week low of $34.02 and a 52-week high of $57.14.

Miami International (NYSE:MIAX) last announced its earnings results on Wednesday, August 5th. The company reported $0.48 earnings per share (EPS) for the quarter, topping analysts’ consensus estimates of $0.41 by $0.07. The company had revenue of $387.63 million during the quarter. Miami International had a net margin of 9.70% and a return on equity of 16.95%. The business’s revenue was up 34.8% on a year-over-year basis. During the same quarter in the previous year, the firm posted $0.48 EPS. Equities research analysts anticipate that Miami International Holdings, Inc. will post 1.7 EPS for the current year.

Trending Headlines about Miami International

Here are the key news stories impacting Miami International this week:

• Positive Sentiment: Miami International Holdings reported that the MIAX Exchange Group’s multi-list options average daily volume increased 25.5% year to date through August 2026, signaling continued momentum in the company’s core trading business. Miami International Holdings Reports August 2026 Trading Results
• Negative Sentiment: Morgan Stanley downgraded MIAX, pressuring the stock by raising concerns about its valuation, outlook, or potential upside. The downgrade was reported alongside a broader decline in the shares. Morgan Stanley downgrades Miami International Holdings
• Negative Sentiment: Company insiders reported selling approximately 169,000 shares worth about $6.6 million in aggregate. The sellers included CEO Thomas Gallagher, EVPs Douglas Schafer Jr., Edward Deitzel, and Barbara Comly, and Director Judson Teekell. Although all transactions were conducted under pre-arranged Rule 10b5-1 trading plans—and executives retained sizable positions—the concentration of sales may weigh on investor sentiment. SEC insider transaction filing

Institutional Trading of Miami International

Hedge funds and other institutional investors have recently added to or reduced their stakes in the business. BlackRock Inc. acquired a new position in Miami International during the second quarter worth approximately $188,466,000. T. Rowe Price Investment Management Inc. grew its stake in Miami International by 24.5% in the fourth quarter. T. Rowe Price Investment Management Inc. now owns 3,025,712 shares of the company’s stock worth $134,282,000 after purchasing an additional 595,096 shares in the last quarter. Vanguard Group Inc. raised its position in shares of Miami International by 39.5% during the 4th quarter. Vanguard Group Inc. now owns 1,928,286 shares of the company’s stock valued at $85,577,000 after acquiring an additional 545,770 shares in the last quarter. Horizon Kinetics Asset Management LLC raised its holdings in shares of Miami International by 31.6% during the fourth quarter. Horizon Kinetics Asset Management LLC now owns 1,819,798 shares of the company’s stock worth $80,763,000 after purchasing an additional 437,395 shares during the period. Finally, J Digital 6 LLC bought a new position in Miami International in the second quarter worth about $67,157,000.

Wall Street Analyst Weigh In

A number of analysts recently commented on MIAX shares. Rosenblatt Securities increased their price objective on Miami International from $61.00 to $62.00 and gave the company a “buy” rating in a research note on Thursday, August 6th. Morgan Stanley lowered shares of Miami International from an “overweight” rating to an “equal weight” rating and reduced their target price for the company from $53.00 to $50.00 in a report on Tuesday. Wall Street Zen cut shares of Miami International from a “buy” rating to a “hold” rating in a research note on Sunday, August 23rd. Weiss Ratings reissued a “hold (c)” rating on shares of Miami International in a research report on Friday, August 7th. Finally, Keefe, Bruyette & Woods upped their price objective on shares of Miami International from $46.00 to $48.00 and gave the company a “market perform” rating in a research note on Friday, August 7th. Three analysts have rated the stock with a Buy rating and six have given a Hold rating to the stock. According to MarketBeat.com, the company has a consensus rating of “Hold” and an average target price of $51.40.

Miami International Company Profile

Miami International (NYSE:MIAX) is a U.S. exchange holding company that operates electronic trading venues and provides market infrastructure for listed options and related products. Its primary business activities include operating regulated exchanges, delivering market data feeds, and offering trading technology and connectivity services designed for professional traders, broker-dealers, and market makers. The company focuses on low-latency execution, order matching, and the operational controls required to support high-volume, automated trading strategies in listed derivatives.

Products and services provided by Miami International include fully electronic order matching engines, transmittable market data and feed products, colocation and connectivity solutions, and tools for risk management and regulatory compliance.