The CAC 40 climbed 1.3% to close at 8,056 on Monday, rebounding from three-week lows as optimism grew that the 40-day US government shutdown, the longest in history, may soon end after the Senate passed a measure to reopen federal agencies. Fears over inflated AI valuations that fueled last week’s selloff also eased, lifting risk appetite. Societe Generale (4.1%), Capgemini (4.1%), and Kering (3.5%) led the gains. Airbus added 1.5% after its subsidiary Satair agreed to acquire Unical Aviation, a US-based supplier of used and in-service aircraft parts.