 Shares of Energous Corp. WATT, -1.96 rocketed 30 on massive volume in premarket trading Tuesday, after the over-the-air wireless charging company said the U.S. Federal Communications Commission granted equipment authorization for wireless power transfer at any distance. Trading volume ballooned to 16.5 million shares, enough make the stock the most actively traded ahead of the open, and compares with the full-day average of about 720,300 shares. 