[aianus]

> It would be impossible to enforce a prohibition against that, as that would effectively be a requirement to sell.

Why would that be impossible to enforce? If you register a planned trade with the SEC you have to follow through with it or pay a fine equal to the amount of money you saved by not going through with it.

[RyJones]

that puts SEC employees in the catbird's seat - selling access to those pending trades would pay for a lot of trips to Milan