Long is buying a stock at a price and when the price of the stock goes up one makes money price goes down one will lose Short is to borrow a stock from their brokerage company at a certain price. When they wish to cash out they must buy the stock and return it to their brokerage. If the price goes up one losses money if the price goes down one makes money A short squeeze is when all the shorts shit their pants cause a stock is due to rise so they need to buy back the borrowed stock to return to the brokerage company thus creating a false rise in the stock. With the cbs news this is gonna be insane. I started trading penny stocks cause of decn. I did the dd. Read the sec halt reports. Saw the 3 big pharmaceutical companies that have a similar test all approved. DECN has a supplier because of his diabetes tests and it has been speculated he can make tests quicker which means back to work sooner. He will probably get approval. But he will have to sell them. If he gets contracts to sell at Costco Walmart or in Europe he will have a viable company. He needs HRs/employees, software that can handle the orders, and a board or it will all fail. All odds are against him but his company at this point is valued higher Based on the perceived value/potential. If this stock doesn’t rise it will be major. Like jail or death of the owner or his small lab starts on fire. Unless one of those happen in the next 24 hours it is going up.