Have (had) a target-date fund that reached its target date, at which point the issuer "exchanged" it for a 'retirement fund'. $ equal, shares/prices not. Q downloaded as sell/buy. This would (I assume) reset acquisition date/price. FI online used word "merger" in both transactions. How best to record in Q? Keep the sell/buy? Only other trans type that seems close in corp. acq. stock/stock, though that's not really what happened here? There is no 'exchange' trans type.
Also not sure tax implications if held in brokerage acct.
Suggestions? TIA.