If institutional players are getting in even at this price range. They probably know something that others don't. I have read some leaked documents from citibank predicting that btc will reach $315 in 2021, I am not sure how legit that is but looking at all these investors I think there may be some very good reason why they're openly revealing their investment. If true, we're at the beginning stage of unstoppable bull run.
It seems like you made a typo, so I actually Googled what you're talking about:
Pointing to a chart that shows three bitcoin bull runs over the last decade, the note suggests that the current rally could "potentially peak in December 2021, at the high of the channel, suggesting a move as high as $318,000 [per bitcoin]."
I would take this with a grain of salt though, considering the note was apparently addressed to institutional clients -- of course they'd want to hype it up. The wording also suggests that it's a ceiling price, which is probably only possible if all our best trends continue going until then.
Anyway, there were a lot of murmurs about institutional interest when Coinbase launched Coinbase Custody in the middle of the bear market (2018), and we're simply living it now. I think we all know there's no way to go but up at this point, so they don't really know any better than us.