Take a look at the companies making headlines in midday trading. Pinterest – Shares fell 12% after the social media company's forward guidance fell short of expectations. The company issued third-quarter revenue guidance of between $885 million and $900 million, below the $908.6 million consensus forecast by analysts polled by FactSet. However, second-quarter profit and revenue beat expectations, according to London Stock Exchange data. Vistra – Shares of the Texas-based electric utility soared nearly 14% after the company announced that the Nuclear Regulatory Commission had approved its request to continue operating the Comanche Peak nuclear power plant. The license renewal extends the operation of Vistra's 2,400-MW power plant until 2053. . That was higher than the $856.5 million expected by analysts polled by FactSet. Match also said it plans to exit live streaming services on its dating app and Sunset Hyperconnect’s live streaming app “Hakuna,” which is primarily available in Japan and South Korea. Advanced Micro Devices – Shares of Advanced Micro Devices rose more than 4% after the chipmaker beat second-quarter profit and revenue estimates. AMD reported adjusted earnings of 69 cents per share on revenue of $5.84 billion. Analysts polled by LSEG expected earnings of 68 cents per share on revenue of $5.72 billion. After the financial report was released, the stock prices of Nvidia and Qualcomm rose by more than 11% and about 5% respectively. Arista Networks – Shares of Arista Networks rose 9% after the company reported second-quarter results that beat Wall Street expectations for revenue and profit. The company reported adjusted earnings of $2.10 per share on revenue of $1.69 billion. Skyworks Solutions — The semiconductor company's adjusted earnings for the fiscal third quarter were $1.21, failing to beat Wall Street expectations and sending its shares tumbling 6%. On the other hand, its revenue of $906 million beat analysts' average estimate of $900 million, according to LSEG. Upstart – Mizuho rose more than 10% after the stock was upgraded to outperform from underperform. Analyst Dan Dolev sees improving borrower risk and an increased likelihood of lower interest rates as catalysts, and he expects shares to rise 19% from Tuesday's closing price. DuPont de Nemours – Shares of DuPont de Nemours rose 5% after the company beat Wall Street expectations for its second-quarter results. DuPont reported earnings excluding items of 97 cents per share on revenue of $3.17 billion. Analysts surveyed by LSEG had expected earnings of 85 cents per share on revenue of $3.05 billion. The chemicals maker also raised its full-year profit and revenue forecast. Humana – shares fell 9% after the health insurance company issued full-year guidance that missed expectations. Humana expects earnings per share of $16 this year, compared with $16.34 expected by analysts polled by FactSet. Starbucks — The coffee chain rose 4% despite lower-than-expected fiscal third-quarter sales. Starbucks reported revenue fell to $9.11 billion, below analysts' expectations of $9.24 billion. The company did meet expectations, with adjusted earnings of 93 cents per share. AutoNation – Shares of the auto dealer rose 8% despite revenue missing Wall Street expectations. AutoNation's revenue for the quarter was $6.48 billion, below the $6.72 billion consensus forecast by analysts surveyed by LSEG. Kraft Heinz — Shares of Kraft Heinz rose more than 4% after the ketchup maker reported better-than-expected second-quarter adjusted profit. However, revenue was lower than expected at $6.48 billion, compared with the $6.55 billion expected by analysts polled by FactSet. Marriott International – Shares of the hotelier fell more than 5% after the company reported second-quarter revenue that missed expectations. Marriott reported earnings of $6.44 billion, below the $6.47 billion expected by analysts polled by FactSet. The company also issued lower-than-expected adjusted earnings guidance for the third quarter, with a forecast range of $2.27 to $2.33 per share. Analysts polled by FactSet expected earnings of $2.38 per share. Bunge – The food stock fell nearly 8% after the company reported second-quarter results that missed analysts’ expectations. Bunge reported adjusted earnings of $1.73 per share on revenue of $13.24 billion. Analysts polled by FactSet expected earnings of $1.83 per share and revenue of $14.3 billion. Constellation Energy – Shares of mid-Atlantic grid operator PJM rose about 11% after the results of the capacity auction were announced. The operator will remove a total of 17.5 GW of power from Constellation between 2025 and 2026. , the stock price rose 3%. Ortberg previously ran aerospace supplier Rockwell Collins (now Collins Aerospace). He will begin his new position on August 8.