Miami International Holdings (MIAX) reported an insider share sale this week when Executive Vice President and Chief Strategy Officer Shelly Brown disposed of 25,932 shares of the companys common stock on March 23, 2026. The proceeds from the sale amounted to $1,019,905, based on a weighted average execution price of $39.33 per share.
The individual trades that comprised the block were executed across prices ranging from $38.98 to $39.80. At the time of reporting, MIAX stock trades at $39.46, a level that marks an 11% decline so far this year, reflecting downward pressure on the shares over recent months.
After completing the transaction, Brown holds 299,197 shares directly. The sale was carried out pursuant to a pre-arranged Rule 10b5-1 trading plan that Brown adopted on December 22, 2025, a mechanism commonly used by corporate insiders to structure sales in advance.
On valuation, the company has a market value of $3.62 billion. According to InvestingPros Fair Value analysis cited in company materials, MIAX appears slightly overvalued relative to that measure. Analysts cited in the same materials project earnings of $1.68 per share for 2026, a forecast that implies a return to profitability for the company.
For investors seeking deeper analysis, the companys materials note the availability of a full Pro Research Report on InvestingPro, which includes additional ProTips and expanded financial metrics.
MIAXs recent operating and financial updates show momentum across its exchanges. For the fourth quarter of 2025, the company reported adjusted diluted earnings per share of $0.52, comfortably above a consensus projection of $0.33. Quarterly revenue reached $125 million, representing a 52% increase versus the year-ago quarter.
Operational metrics highlight increased trading activity. MIAXs U.S. options exchanges averaged 10.8 million contracts per day in February 2026, a rise of 25.4% compared with February 2025. The MIAX Exchange Group captured 17.1% of the U.S. equity options market in February, up 8.1 percentage points year-over-year. These results point to expanding market share within the U.S. options ecosystem and improving top-line performance.
Browns sale and the companys reported quarterly strength present a mixed picture: an insider monetized part of her holdings under an established plan even as MIAX posts meaningful operational gains and an analyst-implied path back to profitability. Readers interested in more granular financials and model inputs are directed to the full research available through InvestingPro.