Gagnon Securities

Gagnon Securities as of March 31, 2011

Portfolio Holdings for Gagnon Securities

Gagnon Securities holds 142 positions in its portfolio as reported in the March 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Rudolph Technologies 4.0 $20M 1.8M 10.94
Red Hat 4.0 $19M 421k 45.39
Constant Contact 4.0 $19M 548k 34.90
Cymer 3.9 $19M 334k 56.58
DURECT Corporation 3.8 $19M 5.1M 3.60
Novadaq Technologies 3.6 $18M 5.3M 3.30
General Finance Corporation 3.5 $17M 5.0M 3.38
RTI Biologics 3.3 $16M 5.5M 2.86
athenahealth 3.0 $14M 319k 45.13
FXCM 3.0 $14M 1.1M 13.03
Ameres (AMRC) 2.8 $14M 972k 14.14
Mindspeed Technologies 2.8 $13M 1.6M 8.46
Com Dev International 2.8 $13M 5.7M 2.34
PLX Technology 2.7 $13M 3.5M 3.65
Internet Capital 2.6 $13M 894k 14.20
Huron Consulting (HURN) 2.6 $12M 447k 27.69
Equinix 2.5 $12M 133k 91.10
CNinsure 2.5 $12M 921k 12.96
CommVault Systems (CVLT) 2.2 $11M 266k 39.88
Alpha & Omega Semiconductor (AOSL) 2.1 $10M 809k 12.69
NetSuite 2.1 $10M 350k 29.08
DemandTec 1.8 $8.8M 669k 13.16
Cytori Therapeutics 1.6 $7.6M 970k 7.83
General Finance Corp unit 99/99/9999 1.6 $7.6M 2.2M 3.51
Generac Holdings (GNRC) 1.4 $6.9M 339k 20.29
Rentrak Corporation 1.3 $6.2M 229k 26.92
Antrim Energy 1.1 $5.5M 5.1M 1.09
Neovasc 1.1 $5.3M 5.7M 0.93
Akamai Technologies (AKAM) 1.1 $5.2M 137k 38.00
Vocus 0.8 $3.6M 140k 25.86
AMN Healthcare Services (AMN) 0.7 $3.3M 386k 8.66
Hologic (HOLX) 0.7 $3.2M 146k 22.20
Xfone (XFN) 0.7 $3.2M 2.2M 1.45
Hypercom Corporation (HYC) 0.6 $3.1M 257k 12.03
Hovnanian Enterprises 0.6 $3.0M 839k 3.53
Gaylord Entertainment Company 0.6 $2.9M 84k 34.68
Kenexa Corporation 0.6 $2.8M 103k 27.59
Pegasystems (PEGA) 0.6 $2.8M 75k 37.94
Aviat Networks 0.6 $2.8M 550k 5.17
Chart Industries (GTLS) 0.6 $2.6M 48k 55.03
CarMax (KMX) 0.5 $2.6M 81k 32.10
Thoratec Corporation 0.5 $2.6M 101k 25.93
ValueClick 0.5 $2.2M 149k 14.46
International Rectifier Corporation 0.4 $2.1M 64k 33.06
Gentex Corporation (GNTX) 0.4 $2.1M 70k 30.25
NetGear (NTGR) 0.4 $2.1M 64k 32.45
Ultimate Software 0.4 $2.0M 33k 58.75
Dex (DXCM) 0.4 $1.9M 125k 15.52
Cepheid 0.4 $1.9M 67k 28.02
Atmel Corporation 0.4 $1.8M 135k 13.63
Perficient (PRFT) 0.4 $1.9M 155k 12.01
Vanda Pharmaceuticals (VNDA) 0.4 $1.8M 244k 7.29
Epicor Software Corporation 0.3 $1.7M 151k 11.07
Immucor 0.3 $1.6M 82k 19.78
Ceragon Networks (CRNT) 0.3 $1.6M 134k 12.08
Titan Pharmaceutical 0.3 $1.6M 1.1M 1.45
Electronic Arts (EA) 0.3 $1.4M 73k 19.53
Digital River 0.3 $1.4M 38k 37.44
LivePerson (LPSN) 0.3 $1.4M 115k 12.64
Maxwell Technologies 0.3 $1.4M 80k 17.26
VeriFone Systems 0.3 $1.4M 25k 54.96
Celgene Corporation 0.3 $1.3M 23k 57.51
Comscore 0.3 $1.4M 46k 29.51
Harman International Industries 0.3 $1.3M 28k 46.82
Monster Worldwide 0.3 $1.3M 81k 15.89
Healthways 0.3 $1.3M 86k 15.37
GameStop (GME) 0.3 $1.2M 55k 22.53
ShoreTel 0.2 $1.2M 148k 8.23
NxStage Medical 0.2 $1.2M 54k 21.99
Nice Systems (NICE) 0.2 $1.2M 32k 36.94
iRobot Corporation (IRBT) 0.2 $1.2M 36k 32.89
Cadence Design Systems (CDNS) 0.2 $1.2M 119k 9.75
Blue Coat Systems 0.2 $1.2M 41k 28.16
Centene Corporation (CNC) 0.2 $1.1M 35k 32.99
Graham Corporation (GHM) 0.2 $1.2M 49k 23.94
Cushing MLP Total Return Fund 0.2 $1.2M 109k 10.85
Acxiom Corporation 0.2 $1.1M 77k 14.35
Molina Healthcare (MOH) 0.2 $1.1M 27k 40.00
Nintendo (NTDOY) 0.2 $1.0M 30k 33.90
Anadigics 0.2 $988k 220k 4.48
Apple (AAPL) 0.2 $949k 2.7k 348.64
Alphatec Holdings 0.2 $960k 356k 2.70
SciClone Pharmaceuticals 0.2 $957k 237k 4.04
Nuance Communications 0.2 $929k 48k 19.56
Exar Corporation 0.2 $936k 156k 6.02
Neutral Tandem 0.2 $862k 58k 14.76
Harmonic (HLIT) 0.2 $829k 88k 9.38
Acme Packet 0.2 $802k 11k 70.97
Financial Engines 0.2 $802k 29k 27.55
Monsanto Company 0.2 $792k 11k 72.22
Applied Micro Circuits Corporation 0.2 $768k 74k 10.38
OmniVision Technologies 0.2 $764k 22k 35.53
Riverbed Technology 0.2 $757k 20k 37.66
Pitney Bowes (PBI) 0.1 $724k 28k 25.70
Daktronics (DAKT) 0.1 $708k 66k 10.76
Flow International Corporation 0.1 $717k 163k 4.39
Web 0.1 $740k 51k 14.58
Sourcefire 0.1 $733k 27k 27.53
Ikanos Communications 0.1 $675k 592k 1.14
Archer Daniels Midland Company (ADM) 0.1 $651k 18k 36.04
Johnson & Johnson (JNJ) 0.1 $598k 10k 59.30
Ethan Allen Interiors (ETD) 0.1 $578k 26k 21.89
Infinera 0.1 $590k 70k 8.39
MIPS Technologies 0.1 $572k 55k 10.50
Harbin Electric 0.1 $532k 26k 20.69
Peoples Financial Services Corp (PFIS) 0.1 $521k 20k 26.33
Vinda International Holdings 0.1 $534k 540k 0.99
Powerwave Technologies 0.1 $499k 111k 4.51
LSI Corporation 0.1 $466k 69k 6.80
InterNAP Network Services 0.1 $466k 71k 6.57
Poly 0.1 $473k 9.1k 51.82
Applied Energetics (AERG) 0.1 $462k 700k 0.66
CoreLogic 0.1 $470k 25k 18.51
dELiA*s 0.1 $465k 258k 1.80
Wonder Auto Technology 0.1 $412k 76k 5.42
Delcath Systems 0.1 $376k 51k 7.36
Taleo Corporation 0.1 $396k 11k 35.69
General Motors Company (GM) 0.1 $372k 12k 31.01
Sysmex Corp Jp Ord Jpy 50 0.1 $379k 11k 35.55
Kandi Technolgies 0.1 $327k 107k 3.07
Yuhe International (YUII) 0.1 $267k 40k 6.66
Advanced Micro Devices Inc note 6.000% 5/0 0.0 $193k 187k 1.03
QKL Stores 0.0 $171k 65k 2.64
Yongye International 0.0 $199k 33k 6.13
Micronics Japan Co Jpy50 0.0 $183k 16k 11.18
Monex Group 0.0 $204k 871.00 234.21
Mitsubishi UFJ Financial (MUFG) 0.0 $136k 30k 4.59
Adtec Engineering 0.0 $132k 38k 3.48
Ichiyoshi Securities 0.0 $146k 21k 6.82
FormFactor (FORM) 0.0 $109k 11k 10.26
ZipRealty 0.0 $93k 32k 2.89
Adtec Engineering 0.0 $86k 20k 4.28
Callwave 0.0 $76k 59k 1.30
Xtreme Coil Drilling Corp 0.0 $118k 22k 5.45
Brocade Communications Systems 0.0 $70k 11k 6.15
Discovery Laboratories 0.0 $45k 24k 1.86
Ichiyoshi Securities 0.0 $72k 11k 6.81
TerreStar Corporation 0.0 $994.480000 12k 0.08
NIVS IntelliMedia Technology 0.0 $14k 137k 0.10
S 0.0 $6.4k 212k 0.03
Valueclick Inc Cmn Stock cmn 0.0 $11k 200.00 55.00
Akela Pharma 0.0 $2.9k 21k 0.14