Actually, there's a bit of a problem for shorts here. Musk 20%, Tencent 5%, institutions 63%, that's 88%. Only 12% of the shares outstanding in the hands of small investors -- and we know some of us are buy-and-hold-for-a-long-time investors. 19% of the shares outstanding are shorted.
This is actually a setup for a genuine short squeeze. It probably won't happen because some of the institutions are short-termers and will sell to the shorts when the shorts decide to cover. But if the institutions hang on, you could find shorters trying to cover 19% of the shares and discovering there aren't that many shares for sale.
Imagine what happens if Tencent buys another 5%... and Musk buys more because he's worried about control... I think eventually some institution shows mercy and sells the shorters shares at very high prices, but you see my point.
It is super dangerous to short a stock like TSLA. The sort of stock you want to short is BTUUQ.