The opinion polls are saying that Britain will vote to leave the European Union.
But that is not what the bookmakers are saying. They are predicting that Britain will stay in the EU.
The polls give the Leave campaign a lead of between three to seven points.
But the bookmakers are forecasting a 58 percent chance that the Remain camp will win next week's referendum.
Why the difference?
More than ten percent of people are undecided. The punters are picking that a majority of those undecided voters will opt for the status quo.
That is what happened with both the Scottish independence vote and last year's UK general election.