"It is widely agreed that excessive short sale activity can...

"It is widely agreed that excessive short sale activity can cause sudden price declines, which can undermine investor confidence, depress the market value of a company's shares and make it more difficult for that company to raise capital, expand and create jobs.

In 2020, 57% of all securities shorted lost money. Sixty-eight percent of every dollar bet lost money.
Equity shorts lost $243 billion in 2020, a return of negative 26%, according to S3 Partners.
This month, their performance is even worse. In January (2021) alone, they are down $91 billion, according to S3.

Short sellers are up $114 billion this year (Jan 2022 - mark to market / paper profits) with winning bets against Tesla and Netflix."