The Dow Jones Industrial Average opened down 0.1%, the S&P 500 rose 0.1%, and the Nasdaq rose 0.3%.

Palantir rose by 11.4%, exceeding market expectations for both financial performance and guidance. Semiconductor testing company Teradyne increased by 6.3%, with strong growth in Q4 performance. Palladyne AI rose by 10.9%, signing contracts with major US defense contractors. PayPal fell by 17.8%, with Q4 profits below expectations and the appointment of a new CEO. Merck dropped by 1.7%, with sales guidance for 2026 below expectations.