Document Security Systems, Inc. (NYSE: DSS) shares surged 63.46 percent to close at $1.70 on Tuesday after the company signed an exclusive master distributor agreement with Advanced Cyber Security to distribute EdnpointLockV software.
Cool Holdings, Inc. (NASDAQ: AWSM) shares climbed 24.96 percent to close at $4.0300 after climbing 25.98 percent on Monday.
HUYA Inc. (NYSE: HUYA) gained 21.99 percent to close at $29.96 after the company reported strong Q4 results.
Intrexon Corporation (NYSE: XON) gained 21.26 percent to close at $5.02. Intrexon and Surterra Wellness announced plans to collaborate on plant propagation for cannabis cultivation.
Tuniu Corporation (NASDAQ: TOUR) climbed 20.88 percent to close at $5.79.
Ctrip.com International, Ltd. (NASDAQ: CTRP) shares climbed 19.78 percent to close at $41.91 after the company reported better-than-expected results for its fourth quarter on Monday.
Aqua Metals, Inc. (NASDAQ: AQMS) gained 19.76 percent to close at $4.0000.
Bionano Genomics, Inc. (NASDAQ: BNGO) gained 19.32 percent to close at $4.88.
BioHiTech Global, Inc. (NASDAQ: BHTG) shares climbed 19.22 percent to close at $3.04 after initiating operations at the nation's first HEBioT™ renewable resource recovery facility located in Martinsburg, West Virginia.
The9 Limited (NASDAQ: NCTY) rose 15.38 percent to close at $2.25 after gaining 31.76 percent on Monday.
Qutoutiao Inc. (NASDAQ: QTT) rose 14.23 percent to close at $15.65. Qutoutiao is expected to release quarterly earnings after the closing bell.
Carvana Co. (NYSE: CVNA) gained 14.05 percent to close at $47.98.
Fuling Global Inc. (NASDAQ: FORK) climbed 14.04 percent to close at $2.68.
Anavex Life Sciences Corp. (NASDAQ: AVXL) shares gained 13.9 percent to close at $2.95.
Sogou Inc. (NYSE: SOGO) gained 13.3 percent to close at $6.98.
YY Inc. (NASDAQ: YY) rose 13.05 percent to close at $81.44 after reporting strong Q4 results.
BIQI International Holding Corporation (NASDAQ: BIQI) shares gained 13.04 percent to close at $2.34.
Riot Blockchain, Inc. (NASDAQ: RIOT) rose 13 percent to close at $3.3900.
Turning Point Brands, Inc. (NYSE: TPB) surged 12.79 percent to close at $44.72 following Q4 results.
Aurora Cannabis Inc. (NYSE: ACB) gained 12.19 percent to close at $8.10 after analysts at Cowen initiated coverage on the stock with an 'Outperform' rating.
SMTC Corporation (NASDAQ: SMTX) surged 11.96 percent to close at $5.43.
XTL Biopharmaceuticals Ltd. (NASDAQ: XTLB) gained 11.16 percent to close at $2.4900.
Four Seasons Education (Cayman) Inc. (NYSE: FEDU) rose 11.05 percent to close at $2.1100.
Gridsum Holding Inc. (NASDAQ: GSUM) shares jumped 10.91 percent to close at $4.37.
La Jolla Pharmaceutical Company (NASDAQ: LJPC) rose 10.58 percent to close at $7.00 following Q4 results.
Chiasma, Inc. (NASDAQ: CHMA) gained 10.53 percent to close at $5.25.
Cronos Group Inc. (NASDAQ: CRON) rose 10.44 percent to close at $23.70. Cowen & Co. initiated coverage on Cronos Group with a Market Perform rating.
Veritiv Corporation (NYSE: VRTV) gained 10.1 percent to close at $29.66.
Xunlei Limited (NASDAQ: XNET) shares rose 8.72 percent to close at $4.7400.
Kohl's Corporation (NYSE: KSS) gained 7.31 percent to close at $71.33 after the company reported better than expected Q4 results with better than expected FY19 EPS guidance.
Fuwei Films (Holdings) Co., Ltd. (NASDAQ: FFHL) shares gained 6.82 percent to close at $2.35.
GreenSky Inc (NASDAQ: GSKY) gained 6.77 percent to close at $12.14 after the company reported better-than-expected Q4 EPS and sales estimates and reaffirmed its FY19 guidance.
Tata Motors Limited (NYSE: TTM) rose 6.2 percent to close at $13.71 on Tuesday.
Park-Ohio Holdings Corp. (NASDAQ: PKOH) rose 5.73 percent to close at $33.56 after reporting a Q4 earnings beat.
BEST Inc. (NYSE: BEST) rose 5.61 percent to close at $6.59 after the company reported better-than-expected Q4 EPS and sales estimates.
ImmunoGen, Inc. (NASDAQ: IMGN) shares rose 5.38 percent to close at $2.74. Morgan Stanley upgraded Immunogen from Underweight to Equal-Weight.
Willis Towers Watson Public Limited Company (NASDAQ: WLTW) rose 5.2 percent to close at $182.04 after Bloomberg earlier reported that Aon is preparing to make a bid to acquire the company.
Target Corporation (NYSE: TGT) rose 4.6 percent to close at $76.00 after the company reported better-than-expected results for its fourth quarter on Tuesday.
Genco Shipping & Trading Limited (NYSE: GNK) gained 4.2 percent to close at $8.74 after the company reported better-than-expected Q4 EPS and sales estimates.
Atlas Financial Holdings, Inc. (NASDAQ: AFH) shares tumbled 60.88 percent to close at $2.66 on Tuesday after the company in its earnings report indicated a need to increase reserve estimates for unpaid losses.
Adamas Pharmaceuticals, Inc. (NASDAQ: ADMS) fell 32.84 percent to close at $8.16 after the company reportedly suspended 2019 revenue guidance amid expected near-term unevenness in prescription growth and challenges related to plan switches. Multiple analysts downgraded the stock.
Barnes & Noble Education, Inc. (NYSE: BNED) fell 32.16 percent to close at $4.64 after the company reported downbeat Q4 results.
22nd Century Group, Inc. (NYSE: XXII) shares declined 26.81 percent to close at $1.72 following resignation of FDA Commissioner Gottlieb.
Revlon, Inc. (NYSE: REV) dropped 21.04 percent to close at $20.19.
Psychemedics Corporation (NASDAQ: PMD) shares dropped 20.73 percent to close at $15.26. Psychemedics posted Q4 earnings of $0.16 per share on sales of $9.936 million.
Cerecor Inc. (NASDAQ: CERC) fell 20.21 percent to close at $5.45. Cerecor reported a 1.454 million share common stock offering at $5.50 per share.
GNC Holdings, Inc. (NYSE: GNC) declined 16.56 percent to close at $2.72 following downbeat Q4 earnings.
T2 Biosystems, Inc. (NASDAQ: TTOO) fell 16.55 percent to close at $3.58.
John Wiley & Sons Inc. (NYSE: JWA) declined 16.42 percent to close at $43.21 following downbeat quarterly results.
Chimerix, Inc. (NASDAQ: CMRX) shares fell 16.09 percent to close at $1.93 after reporting Q4 results.
Bio-Path Holdings, Inc. (NASDAQ: BPTH) shares declined 16.09 percent to close at $4.6150.
Intelsat S.A. (NYSE: I) shares fell 15.91 percent to close at $17.76.
Gaia Inc (NASDAQ: GAIA) dropped 15.44 percent to close at $9.64 after reporting a Q4 earnings miss.
GrafTech International Ltd. (NYSE: EAF) shares fell 13.14 percent to close at $12.36 after reporting a 17.5 million share common stock offering via selling shareholders.
GMS Inc. (NYSE: GMS) dipped 13.12 percent to close at $17.09 following downbeat Q3 earnings.
China Finance Online Co. Limited (NASDAQ: JRJC) shares declined 12.56 percent to close at $1.95 on Tuesday after surging 70.23 percent on Monday.
Titan Medical Inc. (NASDAQ: TMDI) shares fell 11.89 percent to close at $3.78.
Jason Industries, Inc. (NASDAQ: JASN) shares declined 11.81 percent to close at $2.09 following Q4 results.
NeoPhotonics Corporation (NYSE: NPTN) fell 10.78 percent to close at $6.37.
Jianpu Technology Inc. (NYSE: JT) shares declined 10.46 percent to close at $7.02.
Gossamer Bio, Inc. (NASDAQ: GOSS) fell 10.16 percent to close at $20.51 on Tuesday.
Truett-Hurst, Inc. (NASDAQ: THST) shares dropped 10 percent to close at $1.89.
Horizon Global Corporation (NYSE: HZN) shares dipped 10 percent to close at $2.70.
Hertz Global Holdings, Inc. (NYSE: HTZ) fell 9.9 percent to close at $18.01. Carl Icahn lowered stake in Hertz Global from 35.2 percent to 28.91 percent.
Domo, Inc. (NASDAQ: DOMO) dropped 8.74 percent to close at $32.25.
Key Energy Services, Inc. (NYSE: KEG) dipped 8.24 percent to close at $3.45.
NanoViricides Inc (NYSE: NNVC) fell 7.25 percent to close at $0.3200 after the company announced that its first drug candidate has successfully completed the first of Safety and Toxicology studies. The drug is moving towards human clinical trials.
Nuvectra Corporation (NASDAQ: NVTR) shares fell 6.9 percent to close at $12.00.
Align Technology, Inc. (NASDAQ: ALGN) dropped 6.67 percent to close at $239.22 after the company was cited for breach of non-compete with SDC entities and announced it will close its Invisalign stores; the company expects to incur a material charge in Q1.
Pluralsight Inc (NASDAQ: PS) fell 6.21 percent to close at $30.94 after reporting an offering of 13.56 million shares of common stock via selling shareholders.
USA Technologies, Inc. (NASDAQ: USAT) fell 5.62 percent to close at $3.86 after reporting receipt of Nasdaq delisting notification.