10 Best Performing Mid Cap Tech Stocks in the Last 3 Years

3. BigBear.ai Holdings, Inc. (NYSE:BBAI)

Market Cap: $2.76 Billion

3Y CAGR: 70.90%

Number of Hedge Fund Holders: 20

BigBear.ai Holdings, Inc. (NYSE:BBAI) is one of the best-performing mid-cap tech stocks in the last three years, known for applying artificial intelligence and data analytics to defense and logistics systems. On September 23, 2025, the company announced a collaboration with SMX to enhance maritime domain awareness for the U.S. Navy’s 4th Fleet during UNITAS 2025, the world’s longest-running multinational maritime exercise.

The partnership will integrate BigBear.ai Holdings, Inc. (NYSE:BBAI)’s AI-driven decision-support platform with SMX’s operational systems to deliver real-time insights through sensor fusion, predictive analytics, and AI orchestration across naval assets and data streams. The system is designed to improve fleet situational awareness and mission readiness by consolidating multiple intelligence sources into a unified operating picture.

The collaboration shows BigBear.ai’s growing role in AI-enabled defense analytics, where it provides modeling, simulation, and data integration solutions for federal and allied military clients. Headquartered in McLean, Virginia, BigBear.ai specializes in delivering predictive analytics, machine learning, and decision-intelligence software for complex operational environments spanning defense, logistics, and critical infrastructure.