It seems the latest and last ComRes opinion poll is the reason for the sudden spike in the pound and significant moves in the betting markets.
Broken down: Tories 44% and 362 seats, Labour 34% and 212 seats, with a predicted Tory overall majority of 74 seats.
Election poll latest: Theresa May will win biggest Tory landslide since Thatcher, final survey predicts -
http://www.independent.co.uk/news/uk...-a7777781.html