The 2028 US presidential election market is showing a huge change in public sentiment, with JD Vance’s chances now at 26% and California Governor Gavin Newsom closing in at 20%. Data from the prediction markets reveal a surge in trading volume and interest, suggesting voters and speculators are reassessing the early frontrunners.
The market reflects a high level of volatility, with smaller candidates like Marco Rubio and Alexandria Ocasio-Cortez also registering attention. Early polling and market activity can provide insight into broader public opinion, but the results remain speculative until closer to the November 2028 vote.
JD Vance Drops, Newsom Rises
US Vice President, JD Vance remains the front-runner according to Polymarket. His 26% probability reflects both investor confidence and speculative bets, but it represents a decline from previous months when he was trading at 31%.
Vance’s market lead translates to £4.7m ($5.6 million) in traded contracts. Analysts suggest that while he retains a lead, early polling swings means there’s a tightening race between him and California Governor, Gavin Newsom.
California Governor Gavin Newsom
Bureau of Reclamation/Wikimedia Commons
Newsom, currently at 20% on the market, has been steadily climbing as interest grows over his potential nationwide appeal beyond California. He was previously at 18% at the time Vance was at 31%.
Market data shows £3.2m ($3.8 million) in active trades, indicating a growing investor interest in the Democratic governor. This suggest that Newsom’s rise could mean positive media attention, which will be helpful, particularly in battleground states that could be crucial for the 2028 outcome.
Smaller Candidates Show Unexpected Interest
Other candidates are also seeing measurable trading volume, despite low odds. Marco Rubio sits at 9.3%, Alexandria Ocasio-Cortez at 6% and Josh Shapiro at 4%. Public figures from outside traditional politics, such as Dwayne ‘The Rock’ Johnson and Elon Musk, are listed at around 1%. The market collectively has processed over $240 million (£201m) in total volume, a mix of both investor and public engagement.
Is Market Prediction Equivalent to Actual Win?
Prediction markets do not guarantee an actual win, but they often provide a reliable signal of likely outcomes by aggregating traders’ collective expectations. Early markets often respond to news cycles and social media narratives rather than concrete voter intention.
Early volatility, particularly with over 20 candidates listed, can exaggerate perceived gains or losses for frontrunners. This election market resolves based on official calls from major outlets such as the Associated Press, Fox News and NBC, or the inauguration result on Jan. 20, 2029.
Traders buy ‘Yes’ or ‘No’, depending on which candidate they think will win. The price of each contract effectively mirrors the market’s probability for that candidate.
However, there are historical examples that show how prediction markets can often be aligned with actual results. The Iowa Electronic Markets, one of the oldest political prediction markets, predicted Barack Obama‘s victory in the 2008 US presidential election with an implied probability close to his eventual vote share and performed more accurately than many traditional polls in several cycles.
US Presidential Elections 2028
The 2028 United States presidential election is scheduled for Nov. 7, 2028, with parties preparing for extended primary battles. On the Republican side, Vice‑President J.D. Vance is currently seen as the frontrunner to secure the GOP nomination, with markets showing him well ahead of rivals like Marco Rubio and Ron DeSantis in early odds.
On the Democratic side, California Governor Gavin Newsom is emerging as an early favourite for the nomination, although figures such as Alexandria Ocasio‑Cortez, Pete Buttigieg and former Vice‑President Kamala Harris remain in contention.