Stefen Choy

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Stefen Choy
Occupation Co-Founder
Employer Livevol
Location San Francisco, CA
Twitter @sgc1987

Stefen Choy is a founder of technology company Livevol Inc., a proprietary trader at Cutler Group, LP and a founder of Maxima Financial.[1][2]


Prior to founding Livevol and his other current endeavors, he was a proprietary trading with VTrader Pro. He was also a lead market maker with Timber Hill, LLC. He was also an options market maker on the Pacific Exchange.

Following his time with Timber, Choy co-founded Maxima Financial (2002), an options trading firm with offices directly above the exchange floor. He is also the co-founder of Maxima Analytics, the company behind Livevol.


Choy is a graduate of Indiana University's Kelley School of Business with a degree in marketing.[3]


  • Stefen Choy on Defining Using Implied Volatility to Trade FX Options 2