30 Stocks Moving In Tuesday's Mid-Day Session

Gainers

• Camber Energy CEI shares jumped 97.5% to $4.01 after falling 30.95% on Monday.
• Acacia Communications, Inc. ACIA rose 35.4% to $65.07 after Cisco Systems, Inc. CSCO announced plans to acquire the company for $70 per share in cash, or for approximately $2.6 billion on a fully diluted basis, net of cash and marketable securities.
• Xenetic Biosciences, Inc. XBIO gained 20.8% to $12.32.
• Ameri Holdings Inc AMRH rose 18.3% to $0.4177 after the company announced it has partnered with Inpedio to bring Cybersecurity to SAP landscape.
• Electrameccanica Vehicles Corp SOLO surged 15.7% to $2.6850 after Roth Capital initiated coverage on the company's stock with a Buy rating.
• NeoPhotonics Corporation NPTN rose 10.2% to $4.7150.
• Luokung Technology Corp. LKCO gained 9.8% to $8.10.
• Yuma Energy, Inc. YUMA surged 9.5% to $2.9884.
• Applied Optoelectronics, Inc. AAOI rose 9.4% to $10.49.
• Altimmune, Inc. ALT rose 9.3% to $2.71 after the company announced to acquire Spitfire Pharma, which will add a NASH drug candidate to the company's portfolio.
• Perion Network Ltd. PERI climbed 9.1% to $3.1740.
• CytomX Therapeutics, Inc. CTMX gained 8.8% to $12.02 after the company reported second target selection and program initiation with AbbVie under ongoing, multi-program strategic oncology collaboration.
• CareDx, Inc CDNA rose 8% to $38.22.
• ReWalk Robotics Ltd. RWLK surged 7.6% to $4.80.
• Aclaris Therapeutics, Inc. ACRS gained 7.4% to $2.31 on the back of theannouncement of a patent win. The U.S. Patent and Trademark Office has granted the company a patent —No. 10,335,391 — covering the methods to treat facial erythema associated with rosacea using Rhofade, or 1% oxymetazoline hydrochloride composition, Aclaris said Tuesday.
• Square Inc SQ gained 4.9% to $77.02 after Raymond James upgraded the stock from Underperform to Market Perform.
• AzurRx BioPharma Inc AZRX rose 4% to $1.30 after the company announced it initiated the Phase 2 clinical study for MS1819-SD in combination with standard PERT.

Check out these big penny stock gainers and losers

Losers

• FuelCell Energy Inc FCEL shares tumbled 29.6% to $0.5279 on seemingly no news. The movement could potentially be a sell-off following a rise of over 300% last week.
• Soliton, Inc. SOLY fell 11.7% to $16.33 after jumping 61.9% on Monday.
• AquaVenture Holdings Ltd WAAS fell 9.6% to $17.04 after reporting a 4.1 million share common stock offering.
• Rayonier Advanced Materials Inc. RYAM dropped 8.4% to $5.27.
• DaVita Inc. DVA fell 8.2% to $50.94.
• Corindus Vascular Robotics, Inc. CVRS shares declined 8% to $3.1650.
• CannTrust Holdings Inc. CTST tumbled 8% to $3.5229. Roth Capital downgraded CannTrust from Buy to Neutral.
• Karyopharm Therapeutics Inc. KPTI dropped 7.8% to $7.69.
• Tenneco Inc. TEN dipped 7.2% to $9.22.
• NOW Inc. DNOW tumbled 6.8% to $13.48.
• Gold Fields Limited GFI shares fell 5.4% to $5.14 after rising 4.83% on Monday.
• Fresenius Medical Care AG & Co. KGaA FMS fell 5.1% to $37.45.
• Alcoa Corporation AA dropped 4% to $21.42. Macquarie downgraded Alcoa from Outperform to Neutral.