when Refco went bankrupt, the Refco Canada division did not. I know because I was with Refco when it wentbankrupt, yet I still recieved all my deposited funds back. This is because of Canadian regulatory laws. More importantly becuase of the Canadian Investors Protection Fund
http://www.cipf.ca/ .
"What protects you if your investment dealer becomes bankrupt? That’s why the Canadian Investor Protection Fund (CIPF) exists. CIPF ensures, within defined limits, that your cash and securities are protected if you are an eligible customer of an investment dealer that is a Member of one of our sponsoring organizations."
From the CIPF website.
So if you see that that a broker within Canada is a member of the CIPF then there is 100% chance that you will get your funds back if the company goes bankrupt.
I have already experienced this with Refco. However Man Financial owns Refco Canada now as well. Man Financial is one of the largest futures traders in the world, so doubtful that it would go bankrupt either.
--Just things to consider!
Cheers.