Prediction Markets Morning — 2026-10-01
What moved overnight, where Kalshi and Polymarket disagree, and the trades and conversation around them.
What moved overnight, where Kalshi and Polymarket disagree, and the trades and conversation around them.
The Overnight Picture
Will Trump say "Whack Job / Wack Job" before Oct 1, 2026? moved +91.0 pts to 99.0%, the most significant liquidity-adjusted move on Kalshi. Israel x Iran ceasefire continues through October 31? moved +10.5 pts to 81.5%, the most significant liquidity-adjusted move on Polymarket. No matched contracts show gaps of 5 pts or more.
Top Kalshi Movers
Will Trump say "Whack Job / Wack Job" before Oct 1, 2026? (+91.0 pts to 99.0%); Will the Federal Reserve Hike rates by 25bps at their October 2026 meeting? (−9.5 pts to 34.5%); Will the Federal Reserve Hike rates by 0bps at their October 2026 meeting? (+8.5 pts to 64.5%) lead the ranking by movement significance, which weights the size of each move by volume, liquidity and spread.
| # | Market | Probability | 24h move | Significance | Volume |
|---|---|---|---|---|---|
| 1 | Will Trump say "Whack Job / Wack Job" before Oct 1, 2026? | 99.0% | +91.0 pts | 89 | $24,941 |
| 2 | Will the Federal Reserve Hike rates by 25bps at their October 2026 meeting? | 34.5% | −9.5 pts | 58 | $464K |
| 3 | Will the Federal Reserve Hike rates by 0bps at their October 2026 meeting? | 64.5% | +8.5 pts | 54 | $442K |
| 4 | Will Velo Point of Sale Growth for September 2026 be above 240 ? | 98.5% | +7.5 pts | 47 | $4,216 |
| 5 | Will Google release next Gemini Pro model before Oct 1, 2026? | 1.0% | −34.0 pts | 46 | $5,668 |
| 6 | Will Google release next Gemini Pro model before Oct 16, 2026? | 10.5% | −37.5 pts | 35 | $8,423 |
| 7 | Will Coca-Cola Point of Sale Growth for September 2026 be above 96 ? | 98.5% | +5.5 pts | 35 | $2,676 |
| 8 | Will Choosin' Texas by Ella Langley spend 26 weeks at #1 on the Billboard Hot 100 in 2026? | 90.0% | +17.0 pts | 31 | $1,396 |
| 9 | Will the rate of core CPI inflation be above 2.4% for the year ending in September 2026? | 52.0% | +5.0 pts | 30 | $1,663 |
| 10 | Will Google release Gemini 4 before Oct 1, 2026? | 1.0% | −12.0 pts | 29 | $75,683 |
Top Polymarket Movers
Israel x Iran ceasefire continues through October 31? (+10.5 pts to 81.5%); Will the Fed increase interest rates by 25 bps after the October 2026 meeting? (−8.0 pts to 35.5%); Will there be no change in Fed interest rates after the October 2026 meeting? (+8.0 pts to 63.5%) lead the ranking by movement significance, which weights the size of each move by volume, liquidity and spread.
| # | Market | Probability | 24h move | Significance | Volume |
|---|---|---|---|---|---|
| 1 | Israel x Iran ceasefire continues through October 31? | 81.5% | +10.5 pts | 95 | $71,211 |
| 2 | Will the Fed increase interest rates by 25 bps after the October 2026 meeting? | 35.5% | −8.0 pts | 53 | $663K |
| 3 | Will there be no change in Fed interest rates after the October 2026 meeting? | 63.5% | +8.0 pts | 53 | $569K |
| 4 | Will Lamine Yamal win the 2026 Ballon d'Or? | 48.1% | +4.7 pts | 48 | $58,658 |
| 5 | Will Naftali Bennett be the next Prime Minister of Israel? | 10.5% | −5.0 pts | 46 | $31,321 |
| 6 | US announces end of Iranian blockade by October 31, 2026? | 22.5% | −7.0 pts | 42 | $123K |
| 7 | Will Nicolás Maduro be the leader of Venezuela end of 2026? | 67.5% | −4.1 pts | 39 | $24,990 |
| 8 | Will Luiz Inácio Lula da Silva finish in second place in the first round of the 2026 Brazilian presidential election? | 29.3% | +3.1 pts | 35 | $54,525 |
| 9 | Will Luiz Inácio Lula da Silva win the 2026 Brazilian presidential election? | 36.5% | −4.0 pts | 32 | $153K |
| 10 | Will Harry Kane win the 2026 Ballon d'Or? | 41.0% | −2.4 pts | 27 | $41,328 |
Largest Trades
The largest recorded execution was $112K on Kalshi in Will Democrats win the House in 2026?, followed by $63,360 in Will Republicans win the House in 2026?. Size and price impact are measured separately; the tables show the price five minutes after each trade.
| Venue | Market | Side | Notional | Price | Time (ET) | 5m move |
|---|---|---|---|---|---|---|
| Kalshi | Will Democrats win the House in 2026? | YES | $112K | 92% | 07:40 ET | — |
| Kalshi | Will Republicans win the House in 2026? | NO | $63,360 | 92% | 07:40 ET | — |
| Kalshi | Will Democrats win the House in 2026? | YES | $44,603 | 92% | 07:40 ET | — |
| Polymarket | Will Alexandria Ocasio-Cortez win the 2028 Democratic presidential nomination? | NO | $18,639 | 84% | 06:43 ET | — |
| Kalshi | Will Democrats win the House in 2026? | YES | $18,506 | 92% | 07:40 ET | — |
| Kalshi | Will Republicans win the House in 2026? | NO | $16,804 | 91% | 07:40 ET | — |
| Polymarket | Will the U.S. invade Iran before 2027? | NO | $13,050 | 87% | 07:43 ET | — |
| Polymarket | Will Jesus Christ return before 2027? | NO | $6,950 | 99% | 07:02 ET | — |
| Polymarket | Will the Democrats win the Ohio Senate race in 2026? | YES | $5,900 | 59% | 07:45 ET | — |
| Polymarket | Will the Democrats win the Ohio Senate race in 2026? | YES | $5,900 | 59% | 07:46 ET | — |
Where Kalshi and Polymarket Disagree
Will Andy Beshear be the Democratic Presidential nominee in 2028 shows the widest disagreement: Kalshi 6.0% versus Polymarket 2.8%, a 3.3 pt gap. Gaps can reflect rule differences, fees and venue access as well as differing views.
| Contract | Grade | Kalshi | Polymarket | Gap |
|---|---|---|---|---|
| Will Andy Beshear be the Democratic Presidential nominee in 2028 | B | 6.0% | 2.8% | 3.3 pts |
| Will Alexandria Ocasio-Cortez be the Democratic Presidential nominee in 2028 | B | 13.5% | 16.5% | 3.0 pts |
| Will Gavin Newsom be the Democratic Presidential nominee in 2028 | B | 13.5% | 16.1% | 2.5 pts |
| Will Mark Kelly be the Democratic Presidential nominee in 2028 | B | 4.3% | 2.6% | 1.6 pts |
| Will Jon Ossoff be the Democratic Presidential nominee in 2028 | B | 16.5% | 14.9% | 1.6 pts |
| Will Michelle Obama be the Democratic Presidential nominee in 2028 | B | 1.8% | 0.3% | 1.5 pts |
| Will Josh Shapiro be the Democratic Presidential nominee in 2028 | B | 4.7% | 6.0% | 1.4 pts |
| Will Rahm Emanuel be the Democratic Presidential nominee in 2028 | B | 2.9% | 1.9% | 0.9 pts |
| Will Jon Stewart be the Democratic Presidential nominee in 2028 | B | 0.4% | 1.3% | 0.8 pts |
| Will James Talarico be the Democratic Presidential nominee in 2028 | B | 3.1% | 2.4% | 0.8 pts |
Cross-Market Opportunities
No Grade A pair currently shows a positive theoretical edge from executable prices.
Five Markets to Watch Today
Each pick below is selected by a different signal: movement significance, cross-venue disagreement and trade size.
- Will Trump say "Whack Job / Wack Job" before Oct 1, 2026? Most significant Kalshi move
- Israel x Iran ceasefire continues through October 31? Most significant Polymarket move
- Will Andy Beshear be the Democratic Presidential nominee in 2028 Largest cross-venue disagreement
- Will Democrats win the House in 2026? Largest trade of the session
- Will the Federal Reserve Hike rates by 25bps at their October 2026 meeting? Runner-up significant move
Methodology and Timestamp
Tables are computed from Kalshi and Polymarket public market data at the snapshot time. Movement is in percentage points; significance, impact and evidence scores are described on the methodology page.
Snapshot frozen Oct 1, 08:02 ET ET (2026-10-01 12:02 UTC). Evidence hash 4eef4a49c2218db2.