On behalf of the team here at Sparkstone, we appreciate all that you do in working with us to ignite innovation!





Flow Traders

Flow Traders is a principal trading firm and one of the world’s largest liquidity providers in Exchange Traded Funds (ETFs). We maintain a continuous market presence, trading in multiple asset classes around the world. Our firm is headquartered in Amsterdam and has regional trading offices in New York City, Singapore, and soon to be Hong Kong. We have more than 350 employees worldwide. We believe in the power of Flow. That’s why we are a lean organization with a non-hierarchical approach to stimulate innovation and achievement. Our talented, highly motivated people have the autonomy to thrive and excel in a results-driven environment. We invest in them with great confidence and they are the beating heart of our success. Our proprietary software and sophisticated infrastructure give our people the power to respond instantly at any time to complex, changing environments.





SIG

SIG is a place where smart, analytical people work together to trade profitably in today’s markets. We combine cutting edge technology with the sharpest minds in business to trade in the financial markets. We commit our own capital to trade equities and derivatives, including options, futures, and ETFs, as well as commodities, bonds and other financial products around the world. Our traders, quants, developers, and systems engineers work closely together for the continuous development and improvement of our trading strategies.








Belvedere

Belvedere Trading is a leading proprietary trading firm that specializes in equity index and commodity options. We act as market makers, providing liquidity to the marketplace while strategically capitalizing on market inefficiencies. We develop and maintain proprietary, high-performance trading software to give our traders the best execution and analytical tools available. Belvedere offers a casual work environment that promotes innovation and creativity. We provide full benefits and a robust wellness program including in-office yoga, health seminars and discounted gym memberships. We have a flexible, paid time off policy, a transit benefit program and stocked kitchens.











DRW

DRW is a diversified principal trading firm, trading our own capital at our risk across a range of asset classes, instruments and strategies in markets around the world. Sophisticated technology and a passion for solving complex problems drives this activity. As the markets have evolved, so has DRW, growing to include Vigilant, DRW Venture Capital, Convexity Properties and Cumberland Mining.











Optiver

Over thirty years ago, Optiver started business as a single trader on the floor of Amsterdam’s European Options Exchange. Today, we are a leading global electronic market maker, focused on pricing, execution and risk management. We provide liquidity to financial markets using our own capital, at our own risk, trading a wide range of products: listed derivatives, cash equities, ETFs, bonds and foreign currencies. Our independence allows us to objectively improve the markets and provide efficiencies for end investors. With over one thousand Optiverians globally, our mission to improve the market unites us. Thriving in a high performance environment, we pioneer our own trading strategies and systems using clean code and sophisticated technology. We achieve this by attracting, developing and empowering top talent, in order to sustain our future.