Stephen Mills

Stephen Mills is a Trader at Old Mission Capital LLC, based in Ithaca, NY, where he specializes in executing sophisticated trading strategies for the firm's proprietary portfolio. His responsibilities involve price discovery, market making, and liquidity provision across multiple asset classes, with an emphasis on equities and ETFs. Mills leverages advanced quantitative methods to identify trading opportunities and manage risk in fast-moving markets.

He has focused his career on the U.S. equity and ETF markets, gaining deep expertise in high-frequency and electronic trading. Since joining Old Mission in August 2018, Mills has been instrumental in supporting the firm's growth as a leading market maker in the ETF sector, helping to enhance market efficiency and transparency.

A graduate of Cornell University (2014–2018), Stephen Mills combines strong technical and analytical skills with a rigorous understanding of market microstructure. He is recognized for his proficiency in quantitative finance and his active contributions to the development of innovative trading models at Old Mission.