Abstract: An apparatus (100) for proprietary trading financial instruments (F1, F2) in a financial trading system (20) of at least a first trading agent (A1) providing at least first financial instrument (F1) and a second trading agent (A2) providing at least a second financial instrument (F2) and a crowd of trading customers (TC), which apparatus (100) further comprises a monitoring unit (130) configured to automatically monitor opportunities to perform proprietary trading in said trading system (20) based on a plurality of systematic strategies running over the plurality of trading agents and financial instruments and based on behavioral patterns emerged by interaction of individual long- or medium term trading, and further comprising an automated trading unit (180) configured to automatically control multi-agent trading of the plurality of trading agents (A1, A2) and the plurality of financial instruments (F1, F2), wherein the trading unit (180) is configured to automatically provide a time frame (TF) within which t