Brian O'Riordan

Susquehanna International Group, LLP (SIG)

SIG is a global quantitative trading firm founded with a growth mindset and an analytical approach to decision making. As one of the largest proprietary trading firms in the world, we benefit the financial markets by providing liquidity and ensuring competitive prices for buyers and sellers. We bring together the brightest minds, the best technology, and the most expansive library of data in the industry to design and implement quantitative trading strategies that make us leaders in the financial markets. Beyond trading, SIG is active in global private equity, structured capital and institutional brokerage.