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The FTSE 100 moved into the green on Wednesday afternoon, with sterling also rising, as investors in the UK were buoyed by Liz Truss calling an end to her disastrous six-week tenure.
Truss has announced her resignation after a chaotic 44 days in office during which she lost the confidence of Tory members of Parliament and the public and oversaw economic turbulence.
She is set to become the shortest serving prime minister in history after she battled an open revolt from Conservatives demanding her departure.
Speaking from a lectern in Downing Street, Truss said she had told the King she was resigning as the leader of the Conservative Party as she recognised she "cannot deliver the mandate" which Tory members gave her little over six weeks ago.
"To use a phrase that has no doubt been exhausted in the past few weeks, markets don‘