Take a look at the terms of the deal whereby they acquired CIBC' capital markets biz in Jan 2008. If I recall, they have to make a final payment in Jan 2013 based on income from 2008 until then. I believe that also have to share any sale proceeds with CIBC. After Jan 2013, they can sell and pocket all the proceeds. Someone should double check me on this but I believe I am roughly correct.