Let's take your claim as true. The potential "leverage" an insto could have in terms of selling is shorting the stock. They are betting against the price so likely borrowed, sold, and will buy back at a lower price and return collateral in the meantime. Likely borrowed off an index fund. Though despite its feverish participation, retail are still outgunned over this time frame.
Reality is, if that announcement was as ground breaking as some here claim, would the instos not have run the likelihood of great numbers and decided to top up? I mean you can observe broker data on other stocks and actually see this phenomenon. Instos buying stock in companies at a greater capacity than retail or other instos due to great financial results, news, etc. Buying stock in companies is a means to ownership and the value it brings.
Imo that's quite a standard take, no need to make it more complicated than it needs to be. Happy to tag someone much more knowledgeable in this domain that generously provides this data regularly. They tend to preface it with the same take re retail VS insto buying. Traders tend to pay for this information as they are going off the assumption of more informed purchases (institutional buying) than your typical retail investor.
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