Management Reports Boost FireEye Inc, Angie's List Inc

Management changes can have a huge impact on stock prices, and that's certainly the case today. In particular, FireEye Inc (NASDAQ:FEYE) and Angie's List Inc (NASDAQ:ANGI) are running hot on a pair of executive updates -- and potentially putting pressure on option bears.

For starters, FEYE has surged 4.7% to trade at $38.20, after the company named Michael Berry its newest senior vice president and CFO, and added Tesla Motors Inc (NASDAQ:TSLA) finance executive Deepak Ahuja to its board of directors. This is more of the same for a stock that's added 21% year-to-date.

One group that's likely unhappy with the news-induced gains is option traders. During the past 10 weeks at the International Securities Exchange (ISE), Chicago Board Options Exchange (CBOE), and NASDAQ OMX PHLX (PHLX), FEYE has racked up a put/call volume ratio of 0.66 -- just 2 percentage points from a 52-week peak. In other words, speculators have rarely bought to open puts over calls at a faster rate. Should these bears throw in the towel, it could provide a lift to FEYE.

Short sellers are probably feeling the heat, too. Over 15% of FireEye Inc's float is sold short, representing nearly one week's worth of pent-up buying demand, at typical volumes. In other words, a short-covering rally could be just around the corner.

Turning to ANGI, the business review site named Best Buy Co Inc (NYSE:BBY) executive Scott Durchslag its new president and CEO. The appointment has sent the shares 3.2% higher at $5.20 -- though the stock's 2015 deficit remains at 16.5%.

Option traders and short sellers are probably crossing their fingers that ANGI's longer-term struggles will resume. The security's 50-day ISE/CBOE/PHLX put/call volume ratio of 1.28 rests just 11 percentage points from an annual high. Similarly, 18.4% of Angie's List Inc's float is dedicated to short interest, representing about two weeks' worth of trading activity, at typical volumes.