Betting odds indicate 83 percent probability of Britain voting to stay in EU - Betfair

Campaigners hold placards as British Prime Minister David Cameron delivers a speech at a 'Stronger In' campaign event in Witney, Oxfordshire, Britain, 14 May 2016. REUTERS/WILL OLIVER / POOL

LONDON (Reuters) - Betting odds on Wednesday indicated an 82.6 percent implied probability of Britain voting to stay in the European Union in a June 23 referendum, according to Betfair.

The implied probability of an “In” vote has increased by about 12 percentage points in the past week and a half, according to Betfair odds.

While odds have consistently indicated an In vote, opinion pollsters have so far painted contradictory pictures of how Britons will vote.

Reporting by Guy Faulconbridge; editing by Stephen Addison