I looked briefly, then thought about it some - you use the price on for the trade date, not the price on the order date or the price on the settlement date. It's gotta be trade date. After all, the market was closed for business when he made the request. That price and that date are not options after the close of business.
Off to a doctor's appointment, so no cites for you. But, I always heard it was trade date.
With my aging clientele, I'll be interested in the answer, too. (Not that I'm getting any older, though.)
looks like we are back online with these depreciation returns - just opened a couple of them and no more error messages. Very frustrating - their blog that gave us the details of the maintenance work was completely silent that we would have any type of issue working on a return - will have some disappointed clients tomorrow that are expecting me to be done with their returns...