Hi Toofuzzy, That is not what my accountant said. He said that the value of my Benefit IRA on December 31st of the year in question would be the sum total of cash on hand and the value of the stocks, bonds, etc. at the valuation of the close of the market on the last trading day of the year. I called TDAmeritrade to confirm this and they said the same thing.
As it was explained to me, if I bought something for $100 and its value was $50 at the end of the year, that is the amount that will be used for the RMD for the subsequent year. This would be the case regardless one was running an AIM warehouse with this or not.
Best,
Allen