The Kazakh world champion is currently priced at between 1/12 and 1/14 to defend his WBA Middleweight "Super" title for the first time. The odds make him pretty hard to back with the return genuinely not worth the risk. Interestingly it's also hard to put money on Golovkin winning by stoppage with the odds on that generally round 1/3.
For Geale to win you can get odds as wide as 8/1 at the moment, effectively writing off the challenger. Geale by Decision is as wide 14/1 and the Aussie by stoppage is a huge 20/1.
Those who are interested in the draw may be happy to see that it's around 33/1