This is something I don't understand about the "bitcoin days destroyed" metric. Yes, it filters out rapid back-and-forth moves of small amounts over a short time frame, but it also over-empasizes transactions such as this. Seems to me, based on the age, that this is likely just someone moving coins between wallets or consolidating their stash for cold storage.

It's also worth noting that, based on the age of these coins, the actual invested dollar amount this represents is only $900,000.