Midday Gainers; MICROS Systems up 11%

MICROS Systems (NASDAQ: MCRS) +11.32 after Oppenheimer maintains its Outperform rating on the company.

VirnetX Holding Corporation (NYSE: VHC) +8.11% on average volume.

Euronet Worldwide (NASDAQ: EEFT) +9.68% on heavy volume.

Acme Packet (NASDAQ: APKT) +9.41% on average volume.

BroadSoft (NASDAQ: BSFT) +9.29% on average volume.

PulteGroup (NYSE: PHM) +10.14% on heavy volume

SuccessFactors (NYSE: SFSF) +7.00% after Piper Jaffray initiated the company with Overweight.