Fidelity for years now has allowed you to choose which [tax] lots you are [selling]. But there you have to make the choice prior to the trade.
It’s odd that Fidelity has a stricter lot-selection policy than the federal tax code, which merely requires that the tax lots being sold be specified before a transaction’s settlement date.
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”