Just a quick followup. I looked into the financial statements of Penson and Southwest Securities, two clearing firms used by direct access brokers. I was surprised to find that Southwest is approximately 5 times the size of Penson, measured by balance sheets. As of the June financials, Penson apparently had bank loans of about 80% of shareholder's equity. Southwest had none, although the financials are complicated and I may well be misconstruing items. I'm not suggesting there is anything wrong with Penson, but Southwest seems bigger and less leveraged.