Shares in TSB edged ahead as the bank revealed a profits lift and hailed an above-target performance in the current account market.
Tesco shares fell to their lowest level in more than 11 years on Friday after the retailer's credit rating was downgraded and news emerged that an institutional shareholder had sold off his stake.
Britain's number two and three drugmakers burnished their strength as independent companies on Friday when Shire reported record quarterly results and AstraZeneca won backing for an important new cancer drug.
Irish cider maker C&C, which owns Scottish drinks giants Tennents, has had its gate-crashing �760 million bid for the Spirit Pub Company rejected.
The Financial Reporting Council (FRC) has confirmed it is considering whether to launch a full investigation into the Tesco accounting scandal.