retail-investing
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Sergey Savastiouk
Sergey Savastiouk, Ph.D., is the founder and CEO of Tickeron, a Reno-based platform that pairs artificial intelligence with plain-language explanation to give self-directed investors and advisors trading signals, pattern recognition, and automated 'AI robots.' A former applied-mathematics professor at Santa Clara University with two prior startups behind him, he turned the losses of the 2008 crisis into a mission to hand retail investors the kind of algorithmic tools once reserved for institutions.
Jonathan Birnbaum
Jonathan Birnbaum is the founder and CEO of OpenYield, a New York-based fixed income marketplace that brings an equity-like, fully automated trading experience to bonds. A former US credit trading COO at Morgan Stanley and fixed income execution lead at Bridgewater Associates, he later helped build consumer investing platforms as general manager of SoFi Invest and founding COO of Domain Money. He founded OpenYield in 2023 to make bonds cheap and easy to trade for retail investors, backed by a 2026 Series A of more than $6 million from investors including LeveL Markets, Draper Associates, Canapi Ventures and Clocktower Ventures.
Vlad Tenev
Vlad Tenev is the Bulgarian-American co-founder and CEO of Robinhood Markets, the company that forced Wall Street to abolish trading commissions and put a brokerage in every pocket. Born in Varna, Bulgaria, and raised in Virginia after emigrating at age 5, Tenev studied mathematics at Stanford and UCLA before dropping his PhD to build trading software startups. In 2013, he and Baiju Bhatt launched Robinhood to give ordinary people the same tools as professional traders - for free. After navigating the GameStop firestorm, congressional testimony, a bruising post-IPO collapse, and two rounds of layoffs, Tenev rebuilt Robinhood into a diversified financial platform now worth nearly $100 billion and included in the S&P 500. He also co-founded Harmonic, an AI startup pursuing mathematical superintelligence, which reached a $1.45 billion valuation in 2025 after its AI model won a Gold Medal at the International Mathematical Olympiad.