What happened Shares of GameStop (NYSE: GME) jumped as much as 28.2% in trading on Tuesday, despite a short-seller saying the stock will drop by nearly half. At the market's close, shares were still up 10.9% on the day. So what Citron Research, which is a well-known short-seller, said in a tweet today that they will livestream five reasons GameStop buyers are "suckers" tomorrow. They even went as far as to say the stock will fall back to $20 per share "fast." Image source: Getty Images. The reaction obviously wasn't what Citron was looking for today, but traders have a different view of the stock than the short-seller. GameStop's shares were up big on more than five times the average volume for the stock. Now what GameStop's shares have benefited from a boom in online sales, and investors hope that a focus online will keep the company growing. But at this point, shares are up 15 times from their 52-week low, and investors are starting to see it as expensive. That doesn't mean shares won't continue their move higher, but momentum stocks don't trade higher forever. Unless this becomes a long-term growth stock, the run could be over for GameStop any day. 10 stocks we like better than GameStopWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the ten best stocks for investors to buy right now... and GameStop wasn't one of them! That's right -- they think these 10 stocks are even better buys. See the 10 stocks *Stock Advisor returns as of November 20, 2020 Travis Hoium has no position in any of the stocks mentioned. The Motley Fool recommends GameStop. The Motley Fool has a disclosure policy.Source