Infiniti Intelligence Hourly Briefing — Oct 14, 2026 · 6:09 AM ET

The Jacksonville Jaguars have strengthened their position as the prediction-market favourites for the 2026 AFC South title, reaching 75% on Kalshi and 77% on Polymarket in the Oct. 14 reading, according to iPredicta. Their average probability across the two venues rose 8 percentage points from 7 October 2026.

Houston remains second at 16% on Kalshi and 14% on Polymarket, followed by Indianapolis at 10% and 9%. Tennessee trails at 1% and 2%. Both exchanges therefore show the same divisional ranking, with Jacksonville substantially ahead of its nearest challenger.

A lead that has grown since September

The latest figures extend a shift already evident in iPredicta’s 29 September 2026 correction. At that point, Jacksonville stood at 52.5% on Kalshi and 54.5% on Polymarket, measured using the midpoint between the best bid and ask. Houston was at 22.5% and 20.5%, with Indianapolis within roughly a percentage point of Houston on both venues.

That correction also disclosed a problem with the earlier comparison: the AFC South table had remained stuck on its 13 September reading for sixteen days, displaying Houston at 45% and 47%. According to iPredicta, its tables retained their last valid entries when the market leader no longer matched the accompanying text; the other division tables continued updating normally.

Jacksonville finished the 2025 regular season at 13-4, ahead of Houston’s 12-5. Former Jaguars linebacker Paul Posluszny had also identified Jacksonville as an AFC South contender in his preseason NFL predictions for 2026, according to iPredicta.

Reading the market snapshot

The latest prices were recorded on 14 October 2026 at 07:33 UTC. iPredicta reported that the Polymarket AFC South book totalled 100.5%, with $39,141 traded over its lifetime. That reported book total is distinct from the rounded team percentages presented in the headline snapshot.

Liquidity is another qualification. In its 13 September comparison, iPredicta described Kalshi’s division markets as having one-point spreads and hundreds of thousands of contracts traded, while Polymarket’s eight division markets had lifetime turnover of between $20,000 and $34,000 each. Those earlier figures provide context, not a current measure of spreads or trading depth.

What it means for prediction markets

• Agreement is strong: Both venues rank Jacksonville first, Houston second, Indianapolis third and Tennessee fourth.
• The weekly move has a specific basis: The 8-point increase measures the change in the average of the two venues’ prices, rather than necessarily an identical move on each exchange.
• Historical comparisons need care: The frozen September table could misrepresent the timing of Jacksonville’s rise unless the correction is accounted for.
• Prices are not certainty: Jacksonville’s substantial lead reflects market expectations; the snapshot still assigns chances to all three divisional rivals.

More contracts, more money

Betting on the 2026 US congressional midterms has expanded sharply on Kalshi and Polymarket. According to Reuters reporting published by Devdiscourse, the Washington-based Anti-Corruption Data Collective (ACDC) examined more than 21,000 markets through September 30 across Kalshi and Polymarket’s international and US platforms, compared with 463 markets covering the 2024 congressional races.

Trading volume across those platforms has exceeded $220 million this cycle, versus $92 million over the entire 2024 cycle, according to ACDC. The earlier total included wagers placed after Election Day while some races remained unresolved. The platforms gained prominence in 2024 after pointing toward a presidential victory for President Donald Trump despite contrary signals from traditional opinion polls.

Broader coverage, concentrated activity

The expansion reflects both coverage of more congressional seats and more contracts addressing specific aspects of each race. Winner contracts accounted for 71% of election markets in 2024 but represent only 16% this cycle. Contracts on candidates’ winning margins now make up 58%, and turnout markets have also become more numerous. Traders can additionally take binary yes-or-no positions on congressional control and whether candidates will withdraw.

That larger menu has not translated into evenly distributed trading. ACDC researcher Michelle Kendler-Kretsch said winner contracts still attract the overwhelming majority of volume, while many more specialized markets see little activity. Much of the $220 million is concentrated in a handful of contests, particularly the open Texas Senate seat contested by Democrat James Talarico and Republican Ken Paxton. Senate races in Maine, Michigan and South Carolina have also drawn substantial betting.

Activity is concentrated among traders, too. ACDC’s analysis of account, or wallet, data from Polymarket’s international platform found that the top 1% of wallets by congressional trading volume generated 70% of congressional betting volume this cycle. That finding applies to the international platform, rather than the full three-platform dataset.

Integrity questions accompany growth

Election contracts remain a small part of overall prediction-market trading, but some policymakers and public advocacy groups warn about insider trading and damage to confidence in US democracy. Kalshi has suspended a handful of candidates for wagering on their own contests and prohibits election trading by politicians and campaign workers. NPR reported in May that campaign staffers were betting on races they worked on. A Reuters/Ipsos poll published Monday found that most Americans oppose election wagering through prediction markets.

The platforms argue that their markets produce accurate, unbiased information and say they have safeguards against misconduct, routinely referring cases to US authorities. Kalshi describes its prices as information generated by participants putting money behind their views. A Polymarket spokesperson claimed a 98% accuracy rate for its election markets one day before an election and cited surveillance and detection systems designed for political trading.

What it means for prediction markets

• Market count is not a measure of trading depth. More than 21,000 contracts provide broader coverage, but many specialized markets remain lightly traded.
• Winner contracts still dominate participation. Margin markets account for 58% of listings, yet most volume continues to flow into bets on who wins.
• Concentration matters when interpreting prices. A few races attract much of the money, and the top 1% of wallets drive 70% of congressional volume on Polymarket’s international platform.
• Integrity remains a central issue. Candidate suspensions, reported campaign-staffer betting and public opposition put platform safeguards alongside forecasting performance as key questions for readers.