GTx, Inc. (NASDAQ:GTXI), a biopharmaceutical company, reported the fall of -25.18%, after a report that GTx is expected to declare top-line results from two phase III studies of a cancer-related muscle wasting drug known as enobosarm and once again it is expected to be unsuccessful. Stock closed at $5.20 and its total traded volume was 3.89 million shares. Stock price 52 weeks high was $7.24 and 52 weeks low price was $3.29.

Pandora Media Inc (NYSE:P), the major online radio service, fell 8.55%, the most in more than a month, after an analyst reported that Apple Inc. (AAPL) will be an effective rival for people who listen in their cars.Pandora faces a new competitive risk from Apple, which is assimilating hands-free voice controls into automobiles and presenting a new iTunes Radio service. Stock closed at $17.97, after hitting the day high of $19.73 and its total traded volume was 12.00 million shares. Pandora Media Inc has market cap of 3.14 billion.

Rackspace Hosting, Inc. (NYSE:RAX) shares plunged 6.84% and closed at $38.93, after price cuts at Inc.’s cloud-computing unit, according to a Dow Jones report. Amazon Web Services has reduced prices as much as 80 percent for dedicated calculating, use of borrowed machines that are limited to a single customer, often for safety and supervisory reasons. RAX has earnings per share of $0.77 and its price to earnings ratio is 50.49.

RadioShack Corporation (NYSE:RSH), earlier this month, unlocked the doors of the first store showcasing a number of the features that will be part of a new group of stores to be rolled out in locations all over the United States and worldwide over the next several months. In the last trading session, RadioShack Corporation (NYSE:RSH) dropped -7.21%, to close at $2.83 and its total traded volume was 5.62 million shares. Its shares were trading within the range of $2.78-$3.08.