The FTSE 100 fell to a four-week low on Wednesday, dragged down by declines in advertising, oil, and pharmaceutical stocks. WPP dropped over 3% after a downgrade by Barclays, while BP and Shell fell nearly 1% each despite a slight recovery in oil prices. Pharma giants AstraZeneca and GSK also slipped around 1%. Other notable losers included easyJet, Croda, Imperial Brands, Mondi, 3i, and Coca-Cola HBC. In contrast, defence firm Babcock soared over 10% after raising its profit outlook, increasing its dividend, and announcing a