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.
- Stefen Choy on Defining Using Implied Volatility to Trade FX Options 2
- Stefen Choy. LinkedIn.
- Interview: Dax Rodriguez of Livevol. John Lothian News.
- Stefen Choy on "Understanding and Trading the Volatility Skew using FX Options". International Securities Exchange.