It's been a May to forget for a growing number of the financial world's best-known names, and there's still more than a week to go.
JPMorgan Chase chief Jamie Dimon had to apologize for an of at least $2 billion by a "whale" in the bank's London office.
Aubrey McClendon, CEO of Chesapeake Energy faces calls for his removal from the job after revelations he had taken $1.1 billion in personal loans against his stakes in the company.
Scott Thompson departed as Yahoo CEO after only a few months on the job when it was that he didn't actually earn the computer sciences degree listed in his official bio.
JC Penney CEO Ron Johnson saw the retailer's stock plunge after reporting a stunning sales decline and a what Wall Street had expected. That prompted CNBC's Jim Cramer to proclaim the retailer's recently appointed chief had "blown it" with his new pricing strategy.
And don't forget the 'Individual Investor' who had to suffer through all of this.
It's been difficult for all of them, but we want to know who you think has had the worst month?
Answer our poll and leave some comments.