London Markets: Weak pound, Barclays, help drive gains for FTSE 100

U.K. stocks perked up on Wednesday, boosted by weakness for the British pound linked to political worries, and gains for heavily weighed shares such as Barclays PLC, which reported upbeat results.

How are markets performing?

The FTSE 100 UKX, +0.81% rose 1.1% to 7,034.95, the first gain in three sessions.

Sterling GBPUSD, -0.4545% meanwhile bought $1.2915, down from $1.2982 late Tuesday, touching its lowest level since early September, according to FactSet.

What drove the markets?

A weak pound was shielding London stocks somewhat from volatile market sentiment elsewhere, notably in the U.S.

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