Massive trading activity surrounding Tuesday's midterm elections yielded strong predictive results for wagering platforms as over $1.48 billion was staked on the races. These real-money contract exchanges are cementing their influence after successfully projecting key Senate races in Texas and Ohio. Polymarket reportedly secured an accuracy rate of around 98% across the board during the voting cycle. Even so, unexpected upsets like the South Carolina Senate race demonstrated how concentrated bets and thin liquidity can lead traders astray.
Key points
Election betting exchanges proved largely reliable by accurately projecting high-profile…: Election betting exchanges proved largely reliable by accurately projecting high-profile Senate victories for Democrats in Ohio and Texas.
Polymarket achieved an estimated 98% accuracy rate on its election forecasts according to…: Polymarket achieved an estimated 98% accuracy rate on its election forecasts according to a person familiar with the platform.
Critics emphasize that prediction market odds remain susceptible to distortions caused by…: Critics emphasize that prediction market odds remain susceptible to distortions caused by speculative traders and thin market liquidity.
Sources checked by our analysis pipeline: 1
With more than $1.48 billion wagered on Tuesday's elections, the results offered a test of whether prediction markets could translate their odds into accurate electoral forecasts.
For live updates on US Markets, click here
Bets placed on a Democratic midterm sweep largely paid off despite some mispriced races, as tens of millions of voters delivered a stinging rebuke to US President Donald Trump.
"Prediction markets priced the midterm outcome within hours," said Kelly Ye, head of research at digital asset trading platform Talos.
Several closely contested Senate races had attracted millions of dollars in bets, putting prediction markets under scrutiny. In many cases, the results tracked expectations, with Democrats winning Senate seats in Texas and Ohio.
Prediction markets rose to prominence as they diverged from traditional opinion polls by signaling a Trump victory in 2024, and analysts were scrutinizing their performance this week.
While the markets cite high accuracy rates in their betting odds, some high-profile misses during the US primaries and in Brazil's presidential election have shown they are fallible.
Prediction markets allow users to buy and sell contracts…
The balance of power in Washington has flipped, bringing an abrupt end to two years of unified Republican rule and positioning the legislative branch as a direct counterweight to President Donald Trump. With historic new leadership preparing to take the gavel, lawmakers are targeting household expenses and rolling back healthcare reductions. The incoming majorities also plan to confront the administration through sweeping oversight inquiries backed by subpoena power.
Demonstrators gathered in London to protest the government's designation of Palestine Action as a terrorist organisation during a decisive two-day hearing. Legal representatives argued that treating the direct-action group under anti-terrorism legislation sets a dangerous precedent that severely suppresses broader political speech and civil liberties across the country.
Legal representatives for the group's co-founder told five justices that invoking terrorism legislation against a protest organisation is unprecedented and disproportionate. The controversial proscription has paused over 1,200 pending criminal charges while sparking significant public demonstrations across the country. Meanwhile, opposing community advocates maintain the severe designation is necessary because the group's actions have increasingly threatened mainstream institutions.