Image source: Getty Images. What: In Thursday's trading session, shares of TubeMogul (NASDAQ: TUBE) have been rising all day long on above-average trading volume. Share prices increased as much as 11.6% before retreating closer to a 10% gain in the afternoon. There was no news behind this move, which essentially canceled out the shareholder pain of TubeMogul's last two market days. So what: The advertising software vendor is gearing up for a proper second-quarter report on the evening of Monday, Aug. 8. That was not the event behind today's rise. None of TubeMogul's close rivals are moving much today, with the exception of The Rubicon Project regaining some lost ground from an earnings-related 33% crash on Wednesday. But TubeMogul didn't follow suit on the way down, and today's upward move looks just as unrelated to Rubicon's fortunes. Now what: The moderately heavy trading volume may point to large shareholders setting their bets ahead of Monday's earnings call. Keep an eye on that event for some real TubeMogul news -- there's none to be had today. A secret billion-dollar stock opportunity The world's biggest tech company forgot to show you something, but a few Wall Street analysts and the Fool didn't miss a beat: There's a small company that's powering their brand-new gadgets and the coming revolution in technology. And we think its stock price has nearly unlimited room to run for early in-the-know investors! To be one of them, just click here.Anders Bylund has no position in any stocks mentioned. The Motley Fool owns shares of and recommends TubeMogul. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.