An SFC investigation found that Jagjit Singh Dhillon, a former trader with Credit Suisse (Hong Kong) and Credit Suisse Securities (Hong Kong), engaged in "improper activities" in two principal trading books to cover up "losses and the real level of risk exposure" between May 8 and May 17, 2012.
Dhillon, who was responsible for trading in equity derivatives, had booked fictitious trades and entered incorrect market data in the trading books, among others.
In various communications between May and June 2012, Credit Suisse had reported to SFC that Dhillon took steps to avoid showing losses attributed to his trading books and the real level of equity market risk exposure.
SFC stated that "to correct such misstatements, Credit Suisse had to make adjustments to reverse out the P&L (Profit & Loss) that was incorrectly reported in his trading books - negative adjustments of USD 5.4 million to the cumulative monthly P&L figures for Dhillon's trading books was made on 18 May 2012".