Emmanuel Macron has seen his lead grow over Marine Le Pen in polls before the French Presidential election.
A daily poll of voters by Opinionlab showed support for Macron edging up to 61 per cent against 39 per cent for Le Pen, as May Day rallies for both candidates take place across France.
That preserves a 20-point gap which has been evident in most polling since Macron emerged as the frontrunner for the Presidency.
French voters decide who will be their next head of state on Sunday, in a stark choice between the centrist liberalism of Macron's newly created En Marche party and the protectionism of Le Pen’s far-right National Front.
Most analysts predict little chance for Le Pen to overcome the deficit in polling in the days before the vote.
Macron’s victory in the first round of voting and the low probability of a Le Pen victory led to a massive rally in stocks around the world at the start of last week, with a victory for Macron seen as positive for European growth and stability.
Markets gained $290bn over the course of a day, with the FTSE 250 and Germany’s Dax both reaching new record highs as investors embraced riskier assets.
Read more: Macron rally sees markets gain $290bn
However, there may be more volatility in store over the course of the week as European investors return to their desks after the May Day bank holiday and Le Pen does everything she can to fight back.
Le Pen last week gave up her role as leader of the National Front in a move analysts interpreted as an attempt to distance herself from far-right elements of her party, while she has also softened her stance on the euro, which she had previously vowed to leave.
Kit Juckes, a foreign exchange strategist at Societe Generale, said: “The big fear is that turnout will be low. There are an awful lot of left-wing voters in particular, who say they will simply not vote.”