[OT] For those that trade within tax deferred accounts, it may be of interest to know that Fidelity is the only brokerage (according to customer service at Lightspeed) that allows its customers to buy new stock against a sale of other stock before the sale has cleared.
Lightspeed, for example clears sales for new purchases in T3 (+ three days). Not necessarily a bad thing in general, but ironic for a brokerage that prides itself in offering low commissions to the day trader as its core customer.
"The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design." -F.A. von Hayek