Redefining what it means to be an investment firm
The PEAK6 Difference
Located in the historic Chicago Board of Trade Building, PEAK6 is redefining what it means to be an investment firm. We’re driven to see solutions others don’t and capitalize on opportunities others miss. We operate with a focused, entrepreneurial drive and push ourselves to think differently. This ambitious, visionary approach has helped us become the diverse range of successful businesses we are today, which include investments and businesses across a range of industries.

The foundation of our business, PEAK6 Capital Management, LLC is a proprietary trading business with a 20-year track record of success that provides significant liquidity throughout U.S. financial markets.
Learn more
Apex Clearing Corporation is a leading provider of clearing and execution solutions to the financial services industry.
Visit apexclearing.com
PEAK6 Strategic Capital, our capital investment group, invests in debt and/or equity positions across a range of industries where our blend of capital and operational expertise accelerates business growth.
Learn more
National Flood Services is a leading provider of technology-enabled risk & business process services for the U.S. flood insurance industry.
Visit NationalFloodServices.com1997
Founded on
a great idea
PEAK6 Investments LLC was created from the same ambitious, entrepreneurial culture that thrives in the firm today. Co-founders Matt Hulsizer and Jenny Just started their careers at O’Connor and Associates — a Chicago-based options trading firm with a particular specialty, and emphasis, on financial derivatives. In 1992, the firm was acquired by Swiss Bank Corporation. After the acquisition, Swiss Bank decided to head in a new direction.
Entrepreneurs at heart, Matt and Jenny wanted to bring a different vision to life and decided to launch their own firm. And in 1997, PEAK6 Investments was launched. PEAK6 Investments became one of the first firms to develop sophisticated, proprietary technology, which more efficiently manages risk in the options market. This disciplined focus on risk management and technology has helped us achieve significant success in managing risk and making markets. From this singular focus, the firm continued to innovate, growing PEAK6 into a diverse group of thriving, successful businesses that now span many areas of the financial services sector.
2006
2012
2014
2018
2019
Today
Our Leaders

Jenny Just
Co-Founder

Sue Hendrick
Chief of Finance

Judi Hart
Chief People Officer

Matt Hulsizer
Co-Founder
Our Values
Our culture isn’t for everyone. We don’t have a laundry list of fluffy values that sound good but no one really gets. It’s a short, focused list and embodies our essence. We live and breathe these values across the entire firm.
Why the name
“PEAK6”?
Not surprisingly, the story behind the PEAK6 name began in the mountains. Matt was in Breckenridge, Colorado and inspiration struck. He recalled someone once telling him it takes 6 peaks to make a mountain range. He was drawn to this notion of peaks and how they can stand alone and/or work together to form something even more powerful. This perfectly represented the vision for the new firm. And with that, the PEAK6 name took hold. Interestingly, the peak that Matt used as inspiration for our name so many years ago opened to the public in 2013. They named it Peak6. And no — we had nothing to do with it. It’s just fate working its magic.