2008 Société Générale trading loss taken massive fraudulent directional positions in 2007 and 2008 far beyond his limited authority" and that the trades involved European stock index futures. Though bank officials say Kerviel apparently worked alone, skeptics question how unauthorized trading of this magnitude could go unnoticed. Kerviel's unassuming background and position have heightened the skepticism that he worked alone. Some analysts suggest that unauthorized trading of this scale may have gone unnoticed initially due to the high volume in low-risk trades normally conducted by his department. The bank said that whenever the fake trades were questioned, Kerviel would describe it as a mistake then
Today Trader of the "Top 5 Trading Guru’s of 2013" by Trader Robotics. In March 2018 Michael Hebenstreit, a stock broker from Germany, acquired Today Trader and converted the venture into an educational hub offering content and services for professional traders and students who want to learn trading. The Today Trader live trading service brought attention to the field of day trading. "The Motley Fool" author Rich Greifner argued that the day trading lifestyle and results described in "The New York Times" article was "impressive" but questioned the accuracy of the claim as well as offering that these results were "hardly indicative