Phased rollout to take several months
Firm settles with SEC, NYSE
NYSE Group rings opening bell
NYSE shares to begin trading March 8
Transactions in Canadian companies up 27% in January
NYSE censures Deutsche Bank Securities
Butte to see exchange through merger with Archipelago
Companies moving to NYSE from Nasdaq trade more efficiently
Alleged violations include failure to supervise suspicious accounts
20 firms fined for operational failures and supervisory violations