Check out the companies making headlines in the midday trading: Alphabet – The Megacap technology name stock has pulled back 1.2% after Google determined it had illegally dominated online advertising technology. HERTZ – Car rental companies surged 50% following a 56% rally in the previous session after Bill Ackman’s Pershing Square took a significant stake. Regulatory submissions revealed that Pershing Square had established a position of 4.1% as of the end of 2024. Pershing has significantly increased its position through stocks and swaps, becoming Hertz’s second largest shareholder, CNBC reported. NVIDIA, Advanced Micro Devices – Nvidia’s shares fell nearly 3%, AMD fell 1%, continuing its decline from the previous session after chipmakers announced additional charges related to China’s exports in President Donald Trump’s tariff plans. Global Payments, Fidelity National Information Services – Global Payments, has announced that it will acquire WorldPay from Fidelity National Information Services and Private Equity Firms for $242.5 billion and sell its Issue Solutions business. Global Payments stocks fell 16%, while Fidelity National Information Services rose 8.6%. Taiwan Semiconductors – US stocks rose more than 1% after chipmaker results after breaking through Wall Street expectations in the first quarter. The company also maintains its revenue forecast for 2025 and notes that despite “uncertainty and risks from the potential impact of tariff policy,” there has yet to be seen any change in customer behavior. UnitedHealth – Insurance company stock plummeted around 22% against the backdrop of a disappointing first quarter results. UnitedHealth reported an adjusted earnings of $7.20 against revenues of $7.20 per share, falling short of $7.29 per share, $1116 billion requested by analysts examined by LSEG. The company also cut its year-round guidance. Eli Lilly – Pharmaceutical inventory rose 16% after Eli Lilly said that the obesity pill showed positive results in late stage trials. The weight loss data, along with the rate of side effects and treatment discontinuation, came from an experimental drug called orfogripron, consistent with what Wall Street analysts were expecting. The pills did not reach estimates for some analysts on key diabetes metrics. Alcoa – The stock went down nearly 5% after Alcoa, one of the world’s largest aluminum producers, reported first-quarter earnings of $3.37 billion. Alcoa’s revenues have come out more than expected. Dr. Horton – Homebuilding inventory rose 3% despite posting weaker than expected second quarter results. Dr. Horton reported earnings of $2.58 per share, while Analyst expected earnings of $2.63 per share. The company’s revenue was $7.73 billion, below the estimated $8.03 billion. -CNBC’s Sean Conlong and Yun Lee contributed to the report.