2008 Société Générale trading loss a role in the market's overall decline, but characterized that impact as "minimal". 2008 Société Générale trading loss In January 2008, the bank Société Générale lost approximately €4.9 billion closing out positions over three days of trading beginning January 21, 2008, a period in which the market was experiencing a large drop in equity indices. The bank states these positions were fraudulent transactions created by Jérôme Kerviel, a trader with the company. The police stated they lacked evidence to charge him with fraud and charged him with breach of trust and illegally accessing computers. Kerviel states his actions were known
Pattern day trader For example, a trader may use 3 day trades, and then enter a fourth position to hold overnight. If unexpected news causes the security to rapidly decrease in price, the trader is presented with two choices. One choice would be to continue to hold the stock overnight, and risk a large loss of capital. The other choice would be to close the position, protecting his capital, and (perhaps inappropriately) fall under the day-trading rule, as this would now be a 4th day trade within the period. Of course, if the trader is aware of this well-known rule, he should not