London shares dropped on Thursday, hitting session lows after Britain scaled-back job support for workers hit by the resurgent coronavirus pandemic, while AstraZeneca slid as U.S. trials for its COVID-19 vaccine remained on hold.
UK shares rose on Wednesday after Prime Minister Boris Johnson said the government had a "massive" package to protect jobs, offsetting concersn over new restrictions brought in to curb a resurgence in COVID-19 cases.
The FTSE 100 marked its worst day in more than three months on Monday as HSBC and Standard Chartered slid on reports the banks were among those that moved allegedly illicit funds, while travel stocks plummeted on fears of more coronavirus-related lockdowns.
Consumer stocks weighed down London's mid-cap index on Friday after a rise in new coronavirus cases stoked fears of new lockdown measures, and the blue-chip index was bogged down by major energy stocks.
British shares ended lower on Thursday weighed down by major banks and investment stocks, but came off intraday lows after the pound fell on the Bank of England flagging a possible shift to negative rates.
London-listed stocks slipped on Wednesday as the fraught trade talks between Britain and the European Union remained in focus, while shares in The Hut Group surged after the biggest UK initial public offering since 2013.
London's blue-chip index fell on Monday as the prospect of waning demand weighed on heavyweight energy stocks, while security firm G4S propped up the midcap index after it rejected a takeover from Canadia's GardaWorld.
London's FTSE 100 ended Friday higher on gains in mining heavyweight Rio Tinto, and marked its best week in more than three months as a weaker pound benefited the exporter-heavy index.
British stock indexes closed lower on Thursday as disagreements over Brexit terms between Prime Minister Boris Johnson's government and the European Union sowed concern about a messy British departure.
London's blue-chip index ended higher on Wednesday as weakness in the pound looked to benefit major exporters, while the mid-cap index was held back by consumer stocks on fears of new restrictions on social activity.