When SpaceX went public earlier this year, it had a rocket-launch-like trajectory that looked like it was going straight up. Since those first few days of “to the moon” hype, though, its stock price has come crashing down to Earth. This week will see the first “lockup” period for SpaceX stockholders end, meaning employees and early investors can sell their shares. It’s now down about 20% from its IPO price and 50% from its all-time high, wiping out about $1 trillion in value. Per the Times, about $25 billion of SpaceX stock is currently held by short sellers, making it the eighth most-shorted stock in the country and the most-shorted stock of the past month.