RSJ Group consists of RSJ Securities, RSJ Investments, RSJ Custody, RSJ Services and the RSJ Foundation. RSJ Securities For more than 15 years, RSJ Securities has been one of the world's leading algorithmic market makers. We trade on the largest derivatives exchanges in the US and Europe, where we provide liquidity in more than fifty financial instruments. RSJ Securities combines the agility and straightforwardness of a start-up with the stability of an established company. We build on a rational approach to markets and automation of operations. In algorithmic trading, we must be smart and able to react quickly. We have an unwavering desire to improve our trading models and to expand into new markets. RSJ Investments RSJ Investments manages a large portfolio that includes investment into real estate and its development, agriculture, and engineering. It also focuses on key 21st century sectors – information technology, bio-technologies, the production of health foods, renewable energy sources and life sciences.