I moved my shares from TD to Schwab. Now TD is offering me thousands to move my shares back. My first thought was that it took me leaving to be enticed to come back... But after that, it occurred to me that if they can offer me money to have my shares at the brokerage, they must be making more than that off of me somehow. They don't make it off of trade commissions; I am a buy-and-hold guy. And I don't think they are loaning out my shares, as I have no such agreement with TD. The TD broker/agent claims that the firms are competitive, but I think this is about more than just chest thumping rights. How do they make money by having my shares parked in their firm?