Ah, good find. There's no mention of this as a closing option in the app itself. That fee is a bit ridiculous, but it might be the best option if you have a real portfolio.
I can't find a history that shows when they added this, but it appears they at least added transfers in a few years ago:
I can't find a history that shows when they added this, but it appears they at least added transfers in a few years ago:
https://www.reddit.com/r/RobinHood/comments/6tre6o/transfer_...