Camber Energy Inc. /zigman2/quotes/201242655/composite CEI +14.85% remained the hottest name on Wall Street, as the oil-and-gas company's stock is once again the most actively traded on major U.S. exchanges ahead of Friday's open as the recent rollercoaster ride looked set to continue. The stock soared 28.4% in Friday's premarket on volume of 71.9 million shares, after it skyrocketed 95.9% on volume of 961.2 million shares on Thursday, which came after the company disclosed it had no plans for a reverse stock split. That run up followed a four-day losing streak in which the stock plummeted 76.1% on average daily volume of 474.7 million shares, which came after a six-day rally of 161.6% on average daily volume of 523.3 million shares. To put Friday's early rally in Camber Energy's stock in perspective, fellow "meme" stocks AMC Entertainment Holdings Inc. /zigman2/quotes/200235402/composite AMC -9.69% slipped 0.7% on volume of 263,369 shares and GameStop Corp. /zigman2/quotes/203755179/composite GME -6.39% eased 0.2% on volume of 4,069 shares, according to FactSet. And futures /zigman2/quotes/209948968/delayed ES00 -0.50% for the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.23% were little changed.