Morning Market Losers

OPOWER, Inc.
(NYSE:
OPWR
) shares fell 19.33% to $12.48 after the company posted a narrower-than-expected Q4 net loss, but offered a revenue outlook below the consensus.
Primoris Services Corporation
(NASDAQ:
PRIM
) shares slipped 15.86% to $17.75. Primoris Services reported Q4 earnings of $0.17 per share and announced the acquisition of Otter Tail Corporation (NASDAQ:
OTTR
) subsidiary Aevenia in a transaction valued at $23 million.
Uranium Resources, Inc.
(NASDAQ:
URRE
) shares dropped 15.76% to $1.55 after the company announced a $6.0 million registered direct offering.
SunOpta Inc.
(NASDAQ:
STKL
) shares declined 13.80% to $9.87 after the company reported Q4 earnings of $0.06 per share on revenue of $284.8 million and announced a $30 million buyback. The company also announced the acquisition of Citrusource.
Cumulus Media Inc.
(NASDAQ:
CMLS
) shares slipped 12.72% to $3.50 after the company reported lower earnings for the fourth quarter.
MannKind Corp.
(NASDAQ:
MNKD
) shares tumbled 9.71% to $6.00. Goldman Sachs downgraded MannKind from Neutral to Sell and lowered the price target from $6.00 to $3.00.
Caesars Entertainment Corporation
(NASDAQ:
CZR
) shares dropped 7.65% to $10.18 after the company reported fourth quarter financial results and missed expectations.
Arena Pharmaceuticals, Inc.
(NASDAQ:
ARNA
) shares fell 6.54% to $4.00 after the company reported downbeat financial results for the fourth quarter.
Tarena International, Inc.
(NASDAQ:
TEDU
) shares declined 5.47% to $10.88. Tarena International reported Q4 earnings of $0.15 per share on revenue of $27.8 million and issued a weak revenue outlook.
Micron Technology, Inc.
(NASDAQ:
MU
) shares declined 3.17% to $30.25 Nomura downgraded Micron Technology from Buy to Neutral and lowered the price target from $40.00 to $30.00.
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