Vanguard total stock market down 20% from 52 week high
Tesla down 40% from 52 week high
Sure seems true that it has crashed more than the stock market in general. And guess what, on news that he might pull out of the twitter deal, TSLA up 6% in pre-market trading at the moment...
Yes that's correct, on average TSLA is down more then SPX. But you cannot compare a index to a single stock. Since you'll have stocks that are also up.
Compared to the other leaders weight wise in the SP500 (AAPL, MSFT, GOOGL, AMZN, etc) TSLA is down about the same.