What happened Shares of Tilray (NASDAQ: TLRY) were soaring 15.7% as of 11:31 a.m. EDT on Wednesday. The Canadian cannabis producer didn't announce any news, but its shares jumped amid an overall stock market rebound. Investors were optimistic after Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, stated that the situation should improve with the COVID-19 outbreak after this week. So what Dr. Fauci's statements were encouraging. If he's right, it's possible that life could soon begin to return to normal in the U.S. -- and probably in Canada as well. For Tilray, that could mean that retail cannabis stores in Ontario will reopen in the near future. It could also mean that Canada's cannabis derivatives market could pick up momentum. Image source: Getty Images. But there's a reason why Tilray's shares are rising significantly higher than most of the company's rivals' stocks are. Nearly 48% of Tilray's stock float is sold short. Any positive news can cause short-sellers to cover their positions, driving the share price up even more. Now what Marijuana stocks are likely to remain very volatile until it's clear that business is fully back in swing for the cannabis industry. Tilray's huge short percent of float will almost certainly cause higher volatility for its shares than for most other stocks. Any hint of bad news could result in Tilray stock falling just as quickly as it rose today. Here's The Marijuana Stock You've Been Waiting ForA little-known Canadian company just unlocked what some experts think could be the key to profiting off the coming marijuana boom. And make no mistake – it is coming. Cannabis legalization is sweeping over North America – 11 states plus Washington, D.C., have all legalized recreational marijuana over the last few years, and full legalization came to Canada in October 2018. And one under-the-radar Canadian company is poised to explode from this coming marijuana revolution. Because a game-changing deal just went down between the Ontario government and this powerhouse company...and you need to hear this story today if you have even considered investing in pot stocks. Simply click here to get the full story now. Learn moreKeith Speights has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.Source