Check out the companies making the biggest moves in midday trading: Six Flags Entertainment — The theme park operator jumped 7% after the company reported increased attendance and strong interest in its 2026 season-pass program. Tesla — Shares of the electric vehicle company rose 6%, extending recent gains. Tesla is up nearly 12% over the past week, even though the company hasn’t made any announcements. Investors may be encouraged that falling interest rates will make it easier for would-be car buyers to make a purchase. Joby Aviation — The developer of electric vertical takeoff and landing, or eVTOL, aircraft rose 2% after it said it would participate in a White House-backed pilot program to showcase uses of the technology. IonQ — The quantum computing stock jumped 15% after it received U.K. regulatory clearance on Friday to buy Oxford Ionics. The company also touted its acquisition strategy at an analyst day. The news also boosted rivals, including Quantum Computing , which rose 5%, and Rigetti Computing , up 12%. Super Micro Computer — The artificial-intelligence tech firm rose 3% following an announcement that it began volume shipments of its Nvidia Blackwell Ultra solutions to customers worldwide. Warner Bros. Discovery — The HBO Max owner climbed 12% following Thursday’s 29% gain. CNBC reported Thursday that Paramount Skydance was preparing an offer for Warner Bros. Discovery. RH — The luxury furniture retailer …
