The CAC 40 erased early meager gains to close about 1.1% down at 8,236 on Tuesday, the lowest in over a week, amid uncertainty over US–Iran talks ahead of a ceasefire deadline. President Trump told CNBC he expects a “fantastic deal” with Iran, saying the country has “no other choice,” while adding he will not extend the two-week truce following more than a month of conflict. Meanwhile, the traffic in the Strait of Hormuz remains largely halted.. Among key movers, Safran slipped nearly 7% and led losses following a downgrade from Jefferies to "hold" from "buy". Thales followed closely, down almost 6%, despite stronger-than-expected sales, weighed by weakness in its cybersecurity segment and a cautious short-term outlook. On the flip side, STMicroelectronics gained 0.9%, while TotalEnergies rose 0.8% on higher oil prices.