Stocks making the biggest premarket moves: Pfizer, Eaton, Palantir, Yum and more

Check out the companies making the biggest moves in premarket trading: Palantir Technologies — The defense technology stock jumped 6.8% after quarterly revenue exceeded $1 billion for the first time and it raised full-year guidance. Palantir now anticipates revenue for the year to range between $4.142 billion and $4.150 billion, up from prior guidance of $3.89 billion to $3.90 billion. Second-quarter earnings and revenue topped expectations. Pfizer — The stock rose 1.7% after the drug maker raised its guidance and second-quarter earnings and revenue topped analyst estimates. Pfizer now expects full-year adjusted earnings between $2.90 to $3.10 per share, versus previous guidance of $2.80 to $3 a share. Yum Brands — Shares slipped 1.7% following the KFC, Taco Bell and Pizza Hut parent’s second-quarter missed expectations . Adjusted earnings of $1.44 per share were 2 cents below the LSEG consensus estimate, while revenue of $1.93 billion lagged $1.94 billion expected by analysts. Eaton — The power management company dropped 3% after issuing weak guidance for the third quarter. Eaton anticipates adjusted earnings of $3.01 to $3.07 per share, while analysts polled by LSEG expected $3.09 per share. Second-quarter earnings and revenue topped expectations. BP — U.S.-listed shares of the U.K.-based oil giant added 1.7% after BP’s quarterly profit beat expectations . Dupont De Nemours — The chemical maker jumped 5.6% after second-quarter adjusted earnings of $1.12 per share exceeded the $1.06 a share expected by analysts polled by LSEG. Revenue of $3.26 billion was above the $3.24 consensus estimate. Duke Energy — The Charlotte-based utility rose 1.5% after second-quarter adjusted earnings of $1.25 per share exceeded the $1.18 per share analysts surveyed by FactSet had penciled in. Duke Energy also reaffirmed its full-year adjusted earnings guidance of between $6.17 to $6.42 per share versus FactSet’s consensus analyst estimate of $6.32. Lemonade — The insurance stock rallied 7% following second-quarter revenue of $164.1 million, topping the $160.3 million consensus estimate, according to FactSet. Lemonade also reported a narrower-than-expected loss per share. Hims & Hers Health — The telehealth company pulled back dove nearly 12% after second-quarter revenue of $545 million missed estimates from analysts polled by LSEG that called for $552 million. The firm’s third-quarter EBITDA forecast of $60 million to $70 million also missed analyst forecasts of $77 million. Axon Enterprise — The maker of tasers and other police products climbed 8% after second-quarter earnings beat Street expectations and it raised full-year financial guidance. Axon earned $2.12 per share, excluding one-time items, on $669 million in revenue, while analysts surveyed by FactSet had estimated $1.45 a share on $641 million. Syndax Pharmaceuticals — Shares soared more than 15% after the biopharmaceutical company’s second-quarter revenue beat analyst expectations. Syndax also posted a narrower-than-expected loss per share. Zebra Technologies — The mobile computing company advanced 7% after adjusted second-quarter earnings of $3.61 per share bested the $3.34 consensus analyst estimate compiled by FactSet. Revenue of $1.29 billion matched expectations. MercadoLibre — The Latin American e-commerce platform fell 6% after second-quarter earnings missed expectations. MercadoLibre’s earned $10.31 per share versus the consensus estimate of $11.93 per share, according to numbers compiled by FactSet. —CNBC’s Alex Harring, Lisa Han, Sarah Min and Brian Evans contributed reporting.