Wild "Fat Finger" Price Swings In London Stocks Questioned

Two of Europe’s largest publically traded companies experienced wild market swings of nearly 10% in less than a matter of seconds, a move that was quickly dismissed as a “fat finger” mistake but is being questioned by a High Frequency Trading (HFT) expert as a potential planned trading strategy. Price swings in London stock exchange In London trading today, HSBC Holdings plc (NYSE:HSBC) (LON:HSBA), the large investment bank with its own proprietary trading division, rocketed 9.9% higher at approximately 11:20 a.m. in London before falling back in price minutes later, according to a report on Bloomberg.  This market activity comes…