- QBC
- Cubic Energy Inc
- QMM
- Quaterra Resources Inc
- QRM
- Quest Rare Minerals Ltd
- QCC
- Quest Capital
- QABA
- First Trust NASDAQ ABA Community Bank Index Fund
- QCLN
- First Trust NASDAQ Clean Edge U.S. Liquid Series Index Fund
- QQEW
- First Trust NASDAQ-100 Equal Weighted Index Fund
- QQXT
- First Trust NASDAQ-100 Ex-Technology Sector Index Fund
- QTEC
- First Trust NASDAQ-100-Technology Sector Index Fund
- QQQC
- Global X NASDAQ China Technology ETF
- QQQX
- NASDAQ Premium Income and Growth Fund Inc.
- QQQ
- PowerShares QQQ Trust, Series 1
- QADA
- QAD Inc.
- QADB
- QAD Inc.
- QCCO
- QC Holdings, Inc.
- QCRH
- QCR Holdings, Inc.
- QGEN
- Qiagen N.V.
- QKLS
- QKL Stores, Inc.
- QLIK
- Qlik Technologies Inc.
- QLGC
- QLogic Corporation
- QLTI
- QLT Inc.
- QCOM
- QUALCOMM Incorporated
- QLTY
- Quality Distribution, Inc.
- QSII
- Quality Systems, Inc.
- QBAK
- Qualstar Corporation
- QLYS
- Qualys, Inc.
- QTWW
- Quantum Fuel Systems Technologies Worldwide, Inc.
- QCOR
- Questcor Pharmaceuticals, Inc.
- QUIK
- QuickLogic Corporation
- QDEL
- Quidel Corporation
- QNST
- QuinStreet, Inc.
- QUOT
- Life Quotes Inc
- QFON
- NASDAQ OMX CEA Smartphone
- QQQQ
- Powershares QQQ
- QBEIF
- Q B E Insurance Group Ltd
- QBEIY
- Q B E Insurance Group Ltd
- QCLSF
- Q-Cells AG
- QGLDF
- Q-GOLD RESOURCES LTD
- QADI
- QAD Inc
- QUBSF
- Qantas Airways Ltd Sp
- QEPC
- QEP Co
- QNTQF
- Qinetiq Group Plc
- QNTQY
- Qinetiq Group PLC
- QING
- Qingdao Footwear Inc
- QNBC
- QNB CP
- QNTV
- Qnective Inc
- QRSM
- QRS MUSIC TECH INC
- QRXPY
- Qrxpharma Ltd
- QSND
- Qsound Labs Inc
- QDLC
- Quadlogic Controls Corp
- QADMF
- Quadra Fnx Mng
- QDMGF
- Quadra Mng Ltd
- QPRJ
- Quadra Projects Inc
- QNTO
- Quaint Oak Bancorp Inc
- QALB
- Qualibou Energy Inc
- QPDC
- Quality Products Inc
- QMRK
- QUALMARK CP
- QUMI
- Quamtel
- QTXB
- Quantrx Biomed
- QBII
- Quantum Bit Induction Technology Inc
- QNGP
- Quantum Group
- QTMM
- Quantum Material
- QREDF
- Quantum Rare Earth Developments Corp
- QBCRF
- Quebecor Inc
- QNMNF
- Queenston Mining Inc
- QPSA
- QUEPASA CP
- QSURD
- Quest Rare Minrl
- QSFT
- Quest Software Inc
- QUSA
- Questar Assesmnt
- QTEYF
- Questerre Energy Corp
- QMDT
- Quick Med Technologies Inc
- QUTDF
- Quintain Est & Dvl
- QMCI
- Quotemedia.com Inc
- QURS
- Quri Resources
- QEP
- QEP Resources, Inc.
- QIHU
- Qihoo 360 Technology Co. Ltd.
- QRE
- QR Energy, LP
- QUAD
- Quad Graphics, Inc
- QTM
- Quantum Corporation
- QAI
- IQ Hedge Mutli-Strategy Tracker ETF
- QID
- Proshares QQQ
- QXM
- Qiao Xing Mobile Communication Co Ltd
- Q
- Quintiles Transitional Holdings Inc.
- QLD
- Ultra QQQ Proshares
- QIWI
- QIWI plc
