Check out the companies making headlines in midday trading:
Chip stocks— Shares of chipmaker stocks rose broadly after President Donald Trump and Chinese President Xi Jinping agreed not to impose new tariffs on U.S. and Chinese goods and Trump said China will ease its ban on American companies selling products to Huawei. Skyworks rose 6%, Western Digital up 4%, Micron up 3%, Qualcomm rose 1%, Broadcom up 4% and AMD rose 2% and Nvidia rose 1%.
Coty— Shares of cosmetic distributor Coty fell 13% after the company unveiled its turnaround plan which includes spending $600 million over the next four years to "rediscover growth" and improve margins, the company said in a release. Coty, which distributes cosmetic brands like Opi, Covergirl and Sally Hansen, was the best performing stock in the S&P 500 for the first half of 2019, gaining more than 100%.
Wynn Resorts, Las Vegas Sands— Shares of Casino stocks Wynn Resorts and Las Vegas Sands rose 5% and 4% respectively after Macau gaming authority said gambling revenues were better-than-expected in June. Gross gaming revenue in Macau rose 5.9% last month, while StreetAccount estimated of a rise of 2.5%.
MSG Networks - The cable network company's stock dropped 1.9% after it failed to sign NBA Kevin Durant and other superstar free agents. The company, which broadcasts the New York Knicks, will miss out on higher viewership and increased revenues. At the stock's low of the day, down 8.1%, MSG Networks had lost $126 million in market value, more than half of the $164 million that ESPN reported the Brooklyn Nets will pay to sign Durant to a four-year contract.
Biogen— Biogen shares rose 0.7% after the biotechnology company reported positive results for its spinal muscular atrophy drug Spinraza. The company cited "unprecedented" results, including that 88% of pre-symptomatic infants treated with the drug were able to walk independently.
United Therapeutics— United Therapeutics shares rose 5% after a Credit Suisse upgraded the biotechnology company to outperform from neutral and raised his price target on the stock to $101 from $98 per share. Credit Suisse said the company's valuation is attractive at current levels.
Evo Payments—Shares of Evo Payments dropped 6% after BTIG downgraded the payments company to neutral from buy. BTIG cited a full valuation after the stock's 27% surge this year.
—CNBC's Marc Rod, Mallika Mitra and Elizabeth Myong contributed to this report.