IBM's Watson supercomputer which was successful in beating humans  Ken Jennings and Brad Rutter in a game of Jeopardy has gone to work for Wall Street.

The one percent outfit Citigroup has hired Watson to work for it. Watson will "help analyze customer needs and process financial, economic and client data to advance and personalise digital banking."

In otherwords he will be digging through millions of pages' worth of data for its new darker overlords. Citigroup programmers are teaching Watson about regulatory practices, Wall Street jargon and deleting most of its ethics subroutines.

Watson's analysis will be delivered as a cloud-based service.  It's mainly going to be doing risk management as Biggish Blue has not worked out how to programme Watson pick stocks.