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Vonage (NYSE: VG) 51.8% HIGHER; shares jumped 30% on Monday and 165% yesterday as the company announced that it has plans to enter the mobile application market.

Volume has been extremely heavy in the stock this week. Concurrent (Nasdaq: CCUR) 24.6% LOWER; reported Q4 EPS of $0.03, versus the analyst estimate of $0.15 and compared to a loss of $0.12 in the same quarter last year.

Revenue for the quarter was $15.9 million, versus the consensus of $18.75 million. (only 1 analyst covers the stock) Globalstar Inc.

TerreStar (Nasdaq: TSTR) 23.3% HIGHER; continuing higher 2 days after announcing that it will launch its TerreStar-1 on July 1.

The stock has surged 74% since the news hit. Sealy Corp. (NYSE: ZZ) 23.1% HIGHER; sees Q2 sales of $249-301 million, versus the consensus of $296.79 million.

Gross profit for the quarter is expected to be in the range of $119-$123 million.