Polymarket's 96% Hong odds collapse in Wisconsin primary upset
Polymarket odds moved sharply for Francesca Hong to win Wisconsin's Democratic gubernatorial primary, but she lost to David Crowley in a narrow upset. The result challenges assumptions about a progressive wave and gives centrist Democrats a nominee they argued would fare better in the purple-state general election. Hong had traded at 96% on prediction markets entering the primary contest, repeating a pattern of lopsided political books that proved badly wrong.
This is the second time in days that Kalshi and Polymarket posted 98-99% odds on a progressive favorite that collapsed in a primary. Traders who treated these lopsided books as free money absorbed losses when voter behavior diverged from internet momentum. Both platforms now face a repeated credibility test: journalists and campaigns increasingly cite these prices as forecasting signals.
For Kalshi's midterms hub and Polymarket's political brand, back-to-back blowout mispricing threatens the institutional liquidity both are courting. The Wisconsin and Michigan misses share a structural flaw — political markets can freeze on social media energy while actual voters shift beneath the surface. Platforms must now prove their November pricing is predictive signal rather than reactive noise, or risk becoming sentiment selfies with a ticker.