The social media buzz around certain highly shorted companies is starting to build once again. For investors in Petco (NASDAQ:WOOF), this buzz has led to some incredible intraday volatility. In late morning trading, WOOF stock surged more than 11% higher from yesterday’s close. But at the time of this writing, shares are now down over 1% as investors appear to be brushing off a key prospective catalyst. What is this catalyst, you might ask? Well, it’s a meme of course, courtesy of Keith Gill. Also known as ...