Langdon Global Smaller Companies Strategy fund disclosed in its Q2 2026 investor letter that it has initiated a position in the U.S. financial services company Miami International Holdings (MIAX). The fund stated that MIAX's existing position in the U.S. equity options market, proprietary technological infrastructure, and ability to launch new products on broader derivatives platforms were factors that led to its investment decision. MIAX closed at $43.39 on August 26, with a market capitalization of $4.3 billion, and its stock price has risen by 22.26% over the past 52 weeks.