Check out the companies making the biggest moves midday: Oil stocks — Shares of major U.S. oil companies jumped following the U.S. operation in Venezuela that led to the arrest of leader Nicolás Maduro as they are seen as beneficiaries from the rebuilding of energy infrastructure in the country. Chevron , which already has a presence there, rose 5%, while Exxon Mobil advanced 2%. Oilfield services leader Halliburton popped 11%. Coinbase — The crypto exchange rose 7% after a Goldman Sachs upgrade to buy from neutral. "COIN's scale and brand recognition continue to drive above average-revenue growth, market share gains, with a best-in-class [customer acquisition cost] ... supplemented by recent product rollouts that make COIN more competitive generally, and specifically in new structural growth products," the bank wrote . Okta — The access management platform company saw shares pop roughly 6%. Okta announced a $1 billion share buyback program Monday morning, effective immediately. Arista Networks — Shares rose more than 2% following a Piper Sandler upgrade to overweight from neutral. "Given our research, we see 2026 as the 'Year of Refresh' that should benefit hardware vendors like Arista," the firm said. Estee Lauder — The cosmetics company moved nearly 2% higher on the back of an upgrade at Raymond James to strong buy from market perform. The firm also named it one of its top picks for 2026 as the company executes its turnaround. Domino's Pizza — Shares of the pizza chain slipped more than 3% on the heels of a downgrade from TD Cowen. Analyst Andrew Charles trimmed his rating on the company to hold from buy, dialing back 2026 estimates for U.S. same store sales to 2.5% from 3% and pointing to headwinds from softness in the pizza delivery category. Phillips 66 — The oil refiner rose 7% after agreeing to buy assets and related infrastructure for an undisclosed amount from Lindsey Oil Refinery, which is being liquidated by an official receiver. The business will be folded into Phillips' Humber Refinery in the U.K. Mobileye — The maker of autonomous vehicle tech rose more than 3% after an upgrade to overweight from equal weight at Barclays. The bank cited a "favorable" risk/reward backdrop for the rating change. QXO — The roofing and construction products distributor climbed 19% after securing a $1.2 billion preferred equity investment led by private equity giant Apollo. Duolingo — The language education app climbed 7% after a Bank of America upgrade to buy from neutral. "We believe [Duolingo's] value proposition as an entertainment product is not reflected in growth forecasts," BofA said in a note. Zenas BioPharma — The Massachusetts biotech plunged more than 50% after saying it's currently ineligible for milestone payments with Royalty Pharma Investments under prior agreements tied to its INDIGO trial for immunoglobulin G4-related disease. — CNBC's Michelle Fox, Scott Schnipper, Nick Wells and Darla Mercado contributed reporting.
