Day Trader in Leather Jacket Far Cry From Wall Street Flash Boy

Navinder Singh Sarao always stood out among the day traders sweating it out for small change.

Everybody noticed the lanky Londoner when he removed his leather jacket, snapped on noise-reduction headphones and took a seat in front of his three screens. Not because “Nav,” as he was known, made a scene -- a fellow trader called him distant. The 30 or so who toiled in the nondescript building in a southwest London suburb watched his every move because he did what they desperately wished they could: make a pot of money.