The election results according to Sporting Index (a spread betting firm)
Conservative Seats
Sell287 - 291Buy
Labour Seats
Sell263 - 267Buy
Liberal Democrats Seats
Sell24 - 26Buy
UKIP Seats
Sell2.8 - 3.8Buy
Green Party Seats
Sell1 - 1.3Buy
SNP Seats
Sell46 - 48Buy
Plaid Cymru Seats
Sell3.2 - 3.5Buy
If I was a betting man, and I couldn't possibly comment whether I am or not, I'd buy* Conservative seats (just like they do, arf etc)
If you're Scottish and believe the opinion polls, you'd buy SNP seats.
We'll see eh.
* buying Tory seats means I think they will win more than 291.