24/7 Wall St. Closing Bell — October 11, 2012: Markets Fail to Hold Morning Gains (COST, ZNGA, PCS, EA, HST, ADTN, RT, SWY, DRWI, WGO, SCHW, JBHT, WFC, ICPT, KYTH, SSTK, RLGY, CLWR, S, ANR, THC, DLTR)


Clearwire Corp. (NASDAQ: CLWR) is up 57.7% at $2.05. The wireless carrier is jumping on the news that Sprint Nextel Corp. (NYSE: S) is negotiating a sale of a stake in Sprint to Japan's SoftBank. More coverage here.

Alpha Natural Resources Inc. (NYSE: ANR) is up 15.6% at $8.47. The coal miner is leading other coal stocks in a sharp climb today on the continuing rise in natural gas prices and the prospects for a colder winter.

Tenet Healthcare Corp. (NYSE: THC) is up 305% at $24.18. The healthcare provider executed a 1-for-4 reverse stock split today.

Dollar Tree Inc. (NASDAQ: DLTR) is down 8.2% at $43.07. The discount retailer cut its sales outlook today.

Stay tuned for Friday. Richmond Fed President Jeffrey Lacker is giving a speech. We have also noted the following events on the schedule (all times Eastern):

8:30 a.m. - Producer price index9:55 a.m. - University of Michigan/Thomson Reuters consumer sentiment index2:00 p.m. - Treasury budget

Paul Ausick