Tesla's stock has surged by over 56% in the past month, propelling it back into the club of trillion-dollar companies.The surge has caused heavy losses for short sellers, including billionaire Bill Gates, who has a history of shorting Tesla stock.Elon Musk warned that if Tesla becomes the world's most valuable company, Gates' short position could bankrupt him.Tesla's rise reflects its strong position in the electric vehicle market and its role in clean energy innovation.