European and US stock markets advanced Friday, mirroring gains in much of Asia on hopes of progress in looming China-US trade talks, dealers said.
In afternoon trading, London's benchmark FTSE 100 index was up 0.1 per cent, while Frankfurt was marginally higher and Paris won 0.4 per cent.
Wall Street opened higher, with the Dow edging up 0.1 per cent.
The pound slid despite European Commission chief Jean-Claude Juncker's apparent hint that a Brexit deal was still possible, with Britain due to leave the European Union at the end of next month.
"Stocks markets are muted in Europe... as traders are keeping an eye on US-China trade relations," said CMC Markets analyst David Madden.
With a delegation from China in the US to prepare for higher-level negotiations next month, investors hope the economic giants can find a solution to their tariffs row that has been a drag on the global economy for a year.
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Stock markets have enjoyed a broadly positive September thanks to hopes for the talks, with both sides appearing to offer olive branches and sounding less confrontational than they did in July and August.
Equities remain supported by central bank shifts towards easier monetary policy, although there was some disappointment in the Federal Reserve's lack of forward guidance this week for further interest rate cuts.
London sentiment was buoyed Friday after Royal Bank of Scotland appointed long-serving banker Alison Rose as chief executive, making her the first female boss of a major UK lender.
The news sent RBS shares jumping 4.2 per cent higher to stand at 216.7 pence.
On the downside, Rolls-Royce shares sank almost 2.4 per cent to 790.4 pence after revealing that it was taking longer then expected to fix its troubled Trent 1000 plane engines.
Traders meanwhile kept an eye on the Gulf region after last weekend's strikes on Saudi oil facilities fanned geopolitical tensions.
Devastating strikes crippled two of Saudi Arabia's biggest oil plants on Saturday and sent the price of crude soaring on Monday.
Both main contracts then stabilised this week after the initial shock but there are worries of a possible conflict after the US and Saudi Arabia pointed the finger at Iran and said they were considering their response.
Iran's Foreign Minister Mohammad Javad Zarif warned Thursday that any military strike on the country could lead to "all-out war".