The FTSE 100 dropped more than 1% on Tuesday to its lowest level in over three weeks, pressured by broad declines across banks, healthcare and energy stocks. HSBC Holdings fell around 4%, while Standard Chartered declined more than 5%. Oil majors also weakened, with Shell down 1.8% and BP lower by 2.6%. Healthcare stocks were mixed, with AstraZeneca losing 1.1% and GSK slipping 0.3% after concerns following its $10.6 billion acquisition of cancer drug developer Nuvalent. BT shares fell more than 3% after reports that VodafoneThree is among bidders for TalkTalk’s consumer business, which serves around 1.75 million customers. On the positive side, WPP gained more than 5% after receiving a broker upgrade. Meanwhile, UK retail sales performed better than expected in May, supported by warmer weather that boosted demand for summer and outdoor products. Like-for-like sales increased 3.4%, beating forecasts of 0.8% growth.