| Company Name |
Symbol |
| Pizza Inn, Inc. |
PZZI |
| Planar Systems, Inc. |
PLNR |
| PLATO Learning Inc. |
TUTR |
| Plexus Corp. |
PLXS |
| Plug Power, Inc. |
PLUG |
| Plumas Bancorp |
PLBC |
| Pluristem Therapeutics, Inc. |
PSTI |
| PLX Technology, Inc. |
PLXT |
| PMA Capital Corporation |
PMACA |
| PMC - Sierra, Inc. |
PMCS |
| PMFG, Inc. |
PMFG |
| Point.360 |
PTSX |
| Pointer Telocation Ltd. |
PNTR |
| PokerTek, Inc. |
PTEK |
| Polycom, Inc. |
PLCM |
| Poniard Pharmaceuticals, Inc. |
PARD |
| Pool Corporation |
POOL |
| Pope Resources |
POPE |
| Popular, Inc. |
BPOP |
| Portec Rail Products, Inc. |
PRPX |
| Porter Bancorp, Inc. |
PBIB |
| Portfolio Recovery Associates, Inc. |
PRAA |
| PositiveID Corporation |
PSID |
| Powell Industries, Inc. |
POWL |
| Power Integrations, Inc. |
POWI |
| Power-One, Inc. |
PWER |
| PowerSecure International, Inc |
POWR |
| Powerwave Technologies, Inc. |
PWAV |
| Pozen, Inc. |
POZN |
| Prana Biotechnology Ltd |
PRAN |
| Preferred Bank |
PFBC |
| Preformed Line Products Company |
PLPC |
| Premier Exhibitions, Inc. |
PRXI |
| Premier Financial Bancorp, Inc. |
PFBI |
| Premier West Bancorp |
PRWT |
| Presidential Life Corporation |
PLFE |
| Presstek, Inc. |
PRST |
| Pressure BioSciences, Inc. |
PBIO |
| PRG-Schultz International Inc. |
PRGX |
| priceline.com Incorporated |
PCLN |
| PriceSmart, Inc. |
PSMT |
| PrimeEnergy Corporation |
PNRG |
| Primoris Services Corporation |
PRIM |
| Princeton National Bancorp, Inc. |
PNBC |
| Private Media Group, Inc. |
PRVT |
| PrivateBancorp, Inc. |
PVTB |
| Pro-Dex, Inc. |
PDEX |
| Progen Pharmaceuticals Limited |
PGLA |
| Progenics Pharmaceuticals Inc. |
PGNX |
| Progress Software Corporation |
PRGS |
| Prospect Capital Corporation |
PSEC |
| Prospect Medical Hldgs Inc |
PZZ |
| Prosperity Bancshares, Inc. |
PRSP |
| Protection One, Inc. |
PONE |
| Providence and Worcester Railroad Company |
PWX |
| Provident Community Bancshares, Inc. |
PCBS |
| Provident Financial Holdings, Inc. |
PROV |
| Provident New York Bancorp |
PBNY |
| Prudential Bancorp, Inc. of Pennsylvania |
PBIP |
| PSB Holdings, Inc. |
PSBH |
| pSivida Corp. |
PSDV |
| PSS World Medical Inc. |
PSSI |
| Psychemedics Corporation |
PMD |
| Psychiatric Solutions, Inc. |
PSYS |
| Pulaski Financial Corp. |
PULB |
| PURE Bioscience |
PURE |
| Pure Cycle Corporation |
PCYO |
| Purple Communications, Inc |
PRPL |
| PVF Capital Corp. |
PVFC |
