12 Biggest Mid-Day Gainers For Monday

Loxo Oncology Inc LOXO shares climbed 46.7 percent to $71.84 following the announcement of a 76 percent-confirmed objective response rate for the trial of Larotrectinib for the treatment for multiple forms of cancer. Citigroup upgraded Loxo Oncology from Neutral to Buy.
Dynavax Technologies Corporation DVAX shares surged 20.1 percent to $7.09 after the company on Friday presented updated data for SD-101 in combination with KEYTRUDA.
Helix Energy Solutions Group Inc HLX gained 13.1 percent to $5.54. Cowen & Co. upgraded Helix Energy from Market Perform to Outperform.
Forestar Group Inc. FOR shares jumped 13 percent to $16.05 after D.R. Horton, Inc. DHI proposed to buy 75 percent of Forestar Group for $16.25 per share in cash.
Gigamon Inc GIMO shares gained 12.7 percent to $44.30. Reuters reported that Gigamon is exploring a potential sale.
Osisko Gold Royalties Ltd OR shares rose 10.1 percent to $11.75. Osisko disclosed that it has agreed to acquire Orion Mine Finance royalty portfolio.
Navistar International Corp NAV climbed 8.3 percent to $27.85. Baird upgraded Navistar from Neutral to Outperform.
Puma Biotechnology Inc PBYI gained 7.7 percent to $88.30 as the company disclosed positive PB272 Phase 2 data from TBCRC 022 trial at the ASCO17.
bluebird bio Inc BLUE climbed 6.8 percent to $89.90. Bluebird Bio and Celgene issued an update on study of bb2121 anti-BCMA CAR T Cell therapy.
Perion Network Ltd PERI gained 5 percent to $1.89. Perion Network disclosed that MakeMeReach has been named a Snapchat Partner.
NovaBay Pharmaceuticals, Inc. NBY rose 3.8 percent to $2.44. Roth Capital initiated coverage of NovaBay Pharmaceuticals with a Buy rating.
Helios and Matheson Analytics Inc HMNY shares rose 3.2 percent to $2.75 after the company reported that RedZone has acquired all the assets of Trendit including three technology patents.