20 Biggest Mid-Day Gainers For Wednesday

Supreme Industries, Inc. STS shares jumped 35.4 percent to $20.95. Wabash National Corporation WNC announced plans to acquire Supreme Industries for $21.00 per share.
Achillion Pharmaceuticals, Inc. ACHN shares climbed 32.7 percent to $5.32 after the company posted in-line Q2 loss.
ACADIA Pharmaceuticals Inc. ACAD shares gained 18.1 percent to $34.89 as the company reported a narrower-than-expected Q2 loss.
Gravity Co., LTD. (ADR) GRVY surged 15.8 percent to $17.31. Gravity posted Q2 earnings of $0.90 per share on sales of $23.63 million.
Silver Spring Networks Inc SSNI shares rose 15.5 percent to $12.94. Silver Spring Networks reported Q2 earnings of $0.34 per share on sales of $261.6 million.
Green Dot Corporation GDOT jumped 13.9 percent to $45.94 as the company posted upbeat Q2 earnings and raised its FY17 guidance. William Blair upgraded Green Dot from Market Perform to Outperform.
TPI Composites Inc TPIC gained 12.6 percent to $21.49 as the company posted strong Q2 results.
Red Robin Gourmet Burgers, Inc. RRGB shares surged 12.3 percent to $60.35 as the company posted upbeat quarterly earnings. BTIG Research upgraded Red Robin from Neutral to Buy.
Regenxbio Inc RGNX shares rose 12 percent to $20.95 after the company posted strong Q2 results.
Vericel Corp VCEL shares gained 11.7 percent to $3.35 after the company reported strong Q2 results.
Impax Laboratories Inc IPXL jumped 10.6 percent to $16.70 on better-than-expected Q2 results.
RingCentral Inc RNG rose 10 percent to $39.50.
Blue Buffalo Pet Products Inc BUFF climbed 9.9 percent to $23.85 as the company posted in-line Q2 earnings and reported a $50 million buyback plan.
Atkore International Group Inc ATKR rose 9.8 percent to $17.87. Credit Suisse upgraded Atkore International from Neutral to Outperform.
Ladenburg Thalmann Financial Services LTS shares gained 9.6 percent to $2.51. Ladenburg reported a Q2 loss of $0.03 per share on revenue of $311.5 million.
Novavax, Inc. NVAX rose 9.2 percent to $1.06 as the company posted in-line Q2 loss. Ladenburg Thalmann upgraded Novavax from Neutral to Buy.
Array Biopharma Inc ARRY climbed 8.7 percent to $8.59 as the company reported strong quarterly results.
Eldorado Resorts Inc ERI gained 7.5 percent to $21.45 following Q2 results.
Yandex NV YNDX rose 4.1 percent to $31.06. Yandex and Sberbank have signed a non-binding term sheet to form a joint venture based on the Yandex.Market platform.
Wendys Co WEN shares gained 3.8 percent to $15.79 after the company posted better-than-expected quarterly results.