• PAAS
• Pan American Silver Corp. - Common Stock

• PABK
• PAB Bankshares, Inc. - Common Stock

• PACR
• Pacer International, Inc. - Common stock

• PACT
• PacificNet Inc. - Common Stock

• PAET
• PAETEC Holding Corp. - Common Stock

• PALM
• Palm, Inc. - Common Stock

• PANC
• Panacos Pharmaceuticals, Inc. - Common Stock

• PANL
• Universal Display Corporation - Common Stock

• PARD
• Poniard Pharmaceuticals, Inc. - Common Stock

• PARL
• Parlux Fragrances, Inc. - Common Stock

• PARS
• Pharmos Corporation - Common Stock

• PATK
• Patrick Industries, Inc. - Common Stock

• PATR
• Patriot Transportation Holding, Inc. - Common Stock

• PAYX
• Paychex, Inc. - Common Stock

• PBCI
• Pamrapo Bancorp, Inc. - Common Stock

• PBCT
• People's United Financial, Inc. - Common Stock

• PBHC
• Pathfinder Bancorp, Inc. - Common Stock

• PBIB
• Porter Bancorp, Inc. - Common Stock

• PBIO
• Pressure BioSciences, Inc. - Common Stock

• PBIP
• Prudential Bancorp, Inc. of Pennsylvania - Common Stock, par value $0.01 per share

• PBKS
• Provident Bankshares Corporation - Common Stock

• PBNY
• Provident New York Bancorp - Common Stock

• PCAP
• Patriot Capital Funding, Inc. - Common Stock

• PCAR
• PACCAR Inc. - Common Stock

• PCBC
• Pacific Capital Bancorp - Common Stock

• PCBI
• Peoples Community Bancorp, Inc. - Common Stock

• PCBK
• Pacific Continental Corporation (Ore) - Common Stock

• PCBS
• Provident Community Bancshares, Inc. - Common Stock

• PCCC
• PC Connection, Inc. - Common Stock

• PCLN
• priceline.com Incorporated - Common Stock

• PCOP
• Pharmacopeia, Inc. - Common Stock

• PCTI
• PC-Tel, Inc. - Common Stock

• PCYC
• Pharmacyclics, Inc. - Common Stock

• PCYO
• Pure Cycle Corporation - Common Stock

• PDCO
• Patterson Companies Inc. - Common Stock

• PDEX
• Pro-Dex, Inc. - Common Stock

• PDFS
• PDF Solutions, Inc. - Common Stock

• PDGI
• PharmaNet Development Group, Inc. - Common Stock

• PDII
• PDI, Inc. - Common Stock

• PDLI
• PDL BioPharma, Inc. - Common Stock

• PDNT
• Merrill Lynch & Co., Inc. - 97% Protected Notes linked to the Performance of the Dow Jones Industrial Average due March 28, 2011

• PDRT
• Particle Drilling Technologies, Inc. - Common Stock

• PEAK
• Peak International Limited - Common Stock

• PEBK
• Peoples Bancorp of North Carolina, Inc. - Common Stock

• PEBO
• Peoples Bancorp Inc. - Common Stock

• PEDH
• Peoples Educational Holdings, Inc. - Common Stock

• PEET
• Peet's Coffee & Tea, Inc. - Common Stock

• PEGA
• Pegasystems Inc. - Common Stock

• PEIX
• Pacific Ethanol, Inc. - commonstock

• PENN
• Penn National Gaming, Inc. - Common Stock

• PENX
• Penford Corporation - Common Stock

• PERY
• Perry Ellis International Inc. - Common Stock

• PESI
• Perma-Fix Environmental Services, Inc. - Common Stock

• PETD
• Petroleum Development Corporation - Common Stock

• PETM
• PETsMART, Inc. - Common Stock

• PETS
• PetMed Express, Inc. - Common Stock

• PFACP
• Pro-Fac Cooperative, Inc. - Class A Cumulative Preferred Stock

• PFBC
• Preferred Bank - Common Stock

• PFBI
• Premier Financial Bancorp, Inc. - Common Stock

• PFBX
• Peoples Financial Corporation - Common Stock

• PFCB
• P.F.Chang's China Bistro, Inc. - Common Stock

• PFED
• Park Bancorp, Inc. - Common Stock

• PFGC
• Performance Food Group Company - Common Stock

• PFIN
• P & F Industries, Inc. - Class A Common Stock

• PFSW
• PFSweb, Inc. - Common Stock

• PFWD
• Phase Forward Incorporated - Common Stock

• PGEB
• Merrill Lynch & Co., Inc. - 97% Protected Notes Linked to Global Equity Basket

• PGIC
• Progressive Gaming International Corporation - Common Stock

• PGLA
• Progen Pharmaceuticals Limited - Ordinary Shares

• PGLAW
• Progen Pharmaceuticals Limited - Warrant - exercise price is A$8.40 (Australian Dollars). Must convert to US dollars at exercise

• PGNX
• Progenics Pharmaceuticals Inc. - Common Stock

• PGTI
• PGT, Inc. - Common Stock

• PHHM
• Palm Harbor Homes, Inc. - Common Stock

• PHII
• PHI, Inc. - Common Stock

• PHIIK
• PHI, Inc. - Non-Voting Common Stock

• PHLY
• Philadelphia Consolidated Holding Corp. - Common Stock

• PHMD
• PhotoMedex, Inc. - Common Stock

• PHST
• Pharsight Corporation - Common Stock

• PHTN
• Photon Dynamics, Inc. - Common Stock

• PICO
• PICO Holdings Inc. - Common Stock

• PIII
• PECO II, Inc. - Common Stock

• PILL
• ProxyMed, Inc. - Common Stock

• PINN
• Pinnacle Gas Resources, Inc. - Common Stock

• PJZST
• SUPERMONTAGE TEST

• PKBK
• Parke Bancorp, Inc. - Common Stock

• PKOH
• Park-Ohio Holdings Corp. - Common Stock

• PKTR
• Packeteer, Inc. - Common Stock

• PLAB
• Photronics, Inc. - Common Stock

• PLBC
• Plumas Bancorp - Common Stock

• PLCC
• Paulson Capital Corp. - Common Stock

• PLCE
• Children's Place Retail Stores, Inc. (The) - Common Stock

• PLCM
• Polycom, Inc. - Common Stock

• PLFE
• Presidential Life Corporation - Common Stock

• PLJC
• Citigroup Inc. - Principal-Protected Equity Linked Notes Based Upon the Nasdaq-100 Index

• PLLL
• Parallel Petroleum Corporation - Common Stock

• PLNR
• Planar Systems, Inc. - Common Stock

• PLPC
• Preformed Line Products Company - Common Stock

• PLUG
• Plug Power, Inc. - Common Stock

• PLXS
• Plexus Corp. - Common Stock

• PLXT
• PLX Technology, Inc. - Common Stock

• PMACA
• PMA Capital Corporation - Class A Common Stock

• PMBC
• Pacific Mercantile Bancorp - Common Stock

• PMCS
• PMC - Sierra, Inc. - Common Stock

• PMFG
• Peerless Manufacturing Company - Common Stock

• PMID
• Pyramid Breweries, Inc. - Common Stock

• PMII
• Power Medical Interventions, Inc. - Common Stock

• PMRY
• Pomeroy IT Solutions, Inc. - Common Stock

• PMTC
• Parametric Technology Corporation - Common Stock

• PMTI
• Palomar Medical Technologies, Inc. - Common Stock

• PNBC
• Princeton National Bancorp, Inc. - Common Stock

• PNBK
• Patriot National Bancorp Inc. - Common Stock

• PNCL
• Pinnacle Airlines Corp. - Common Stock

• PNFP
• Pinnacle Financial Partners, Inc. - Common Stock

• PNNT
• PennantPark Investment Corporation - common stock

• PNNW
• Pennichuck Corporation - Common Stock

• PNRA
• Panera Bread Company - Class A Common Stock

• PNRG
• PrimeEnergy Corporation - Common Stock

• PNSN
• Penson Worldwide, Inc. - Common Stock

• PNTR
• Pointer Telocation Ltd. - Ordinary Shares

• PNXQ
• PowerShares Exchange-Traded Fund Trust - PowerShares Nasdaq Next Q Portfolio

• PODD
• Insulet Corporation - Common Stock

• POLXF
• Polydex Pharmaceuticals Limited - Common Stock

• PONE
• Protection One, Inc. - Common Stock

• POOL
• Pool Corporation - Common Stock

• POPE
• Pope Resources - Depositary Receipts of Limited Partnership Units

• POWI
• Power Integrations, Inc. - Common Stock

• POWL
• Powell Industries, Inc. - Common Stock

• POWR
• PowerSecure International, Inc - Common Stock

• POZN
• Pozen, Inc. - Common Stock

• PPBI
• Pacific Premier Bancorp Inc - Common Stock

• PPCO
• Penwest Pharmaceuticals Co. - Common Stock

• PPDI
• Pharmaceutical Product Development, Inc. - Common Stock

• PPHM
• Peregrine Pharmaceuticals Inc. - Common Stock

• PQSC
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE Nasdaq Small Cap Portfolio

• PRAA
• Portfolio Recovery Associates, Inc. - Common Stock

• PRAN
• Prana Biotechnology Ltd - American Depositary Shares

• PRCP
• Perceptron, Inc. - Common Stock

• PRFE
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Energy Sector Portfolio

• PRFF
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Financials Sector Portfolio

• PRFG
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Consumer Goods Sector Portfolio

• PRFH
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Healthcare Sector Portfolio

• PRFM
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Basic Materials Sector Portfolio

• PRFN
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Industrials Sector Portfolio

• PRFQ
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Telecommunications & Technology Sector Portfolio

• PRFS
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Consumer Services Sector Portfolio

• PRFT
• Perficient, Inc. - Common Stock

• PRFU
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI Utilities Sector Portfolio

• PRFZ
• PowerShares Exchange-Traded Fund Trust - PowerShares FTSE RAFI US 1500 Small-Mid Portfolio

• PRGN
• Paragon Shipping Inc. - Class A Common Shares

• PRGO
• Perrigo Company - Common Stock

• PRGS
• Progress Software Corporation - Common Stock

• PRGX
• PRG-Schultz International Inc. - Common Stock

• PRKR
• ParkerVision, Inc. - Common Stock

• PRLS
• Peerless Systems Corporation - Common Stock

• PROJ
• Deltek, Inc. - Common Stock

• PROS
• ProCentury Corporation - Common Stock

• PROV
• Provident Financial Holdings, Inc. - Common Stock

• PRPX
• Portec Rail Products, Inc. - Common Stock

• PRSC
• The Providence Service Corporation - Common Stock

• PRSP
• Prosperity Bancshares, Inc. - Common Stock

• PRST
• Presstek, Inc. - Common Stock

• PRTS
• U.S. Auto Parts Network, Inc. - Common Stock

• PRVT
• Private Media Group, Inc. - Common Stock

• PRWT
• Premier West Bancorp - Common Stock

• PRXI
• Premier Exhibitions, Inc. - Common Stock

• PRXL
• PAREXEL International Corporation - Common Stock

• PRXM
• Proxim Wireless Corporation - Common Stock

• PSBC
• Pacific State Bancorp CA - Common Stock

• PSBH
• PSB Holdings, Inc. - Common Stock

• PSDV
• pSivida Limited - American Depository Shares

• PSEC
• Prospect Capital Corporation - Common Stock, $0.001 par value per share

• PSEM
• Pericom Semiconductor Corporation - Common Stock

• PSIT
• PSi Technologies Holdings, Inc. - American Depositary Shares

• PSMT
• PriceSmart, Inc. - Common Stock

• PSPT
• PeopleSupport, Inc. - Common Stock

• PSSI
• PSS World Medical Inc. - Common Stock

• PSTA
• Monterey Gourmet Foods, Inc. - Common Stock

• PSTI
• Pluristem Therapeutics, Inc. - Common Stock

• PSUN
• Pacific Sunwear of California, Inc. - Common Stock

• PSYS
• Psychiatric Solutions, Inc. - common stock

• PTEC
• Phoenix Technologies Ltd. - Common Stock

• PTEK
• PokerTek, Inc. - Common Stock

• PTEN
• Patterson-UTI Energy, Inc. - Common Stock

• PTIE
• Pain Therapeutics - Common Stock

• PTIL
• Protherics Plc - American depositary shares

• PTIX
• Performance Technologies, Incorporated - Common Stock

• PTNR
• Partner Communications Company Ltd. - American Depositary Shares

• PTRY
• Pantry, Inc. (The) - Common Stock

• PTSI
• P.A.M. Transportation Services, Inc. - Common Stock

• PTSX
• Point.360 (New) - Common Stock, no par

• PULB
• Pulaski Financial Corporation - Common Stock

• PURE
• PURE Bioscience - Common Stock

• PVFC
• PVF Capital Corp. - Common Stock

• PVSA
• Parkvale Financial Corporation - Common Stock

• PVSW
• Pervasive Software Inc. - Common Stock

• PVTB
• PrivateBancorp, Inc. - Common Stock

• PVZST
• SUPERMONTAGE TEST

• PWAV
• Powerwave Technologies, Inc. - Common Stock

• PWER
• Power-One, Inc. - Common Stock

• PWOD
• Penns Woods Bancorp, Inc. - Common Stock

• PWRD
• Perfect World Co., Ltd. - American Depositary Shares

• PXLW
• Pixelworks, Inc. - Common Stock

• PXPLD
• Pixelplus Co., Ltd. - American Depositary Shares representing 2 common shares

• PXSL
• Pharmaxis Limited - Sponsored ADR (Australia)

• PZZA
• Papa John's International, Inc. - Common Stock

• PZZI
• Pizza Inn, Inc. - Common Stock