Is it possible to swap assets between personal accounts and retirement accounts?
Say I have $100 worth of one fund in my 401k, and I think that fund is better as a short-term investment, and I also have $100 in another fund which I own in a personal account, and I think the second fund would serve well as a long-term investment. To put the asset bought after tax and available to sell at any time into the 401k and pull what's in the pre-tax 401k out would make no net difference in the current value of the retirement account, or are there other obstacles?