What Moved the Market
Polymarket’s contract on whether Hamas will officially agree to disarm in Gaza by December 31, 2026 fell 28 percentage points in the past 24 hours to 64%. The 24-hour move registers as extreme relative to the market’s recent trading history.
Despite the sharp daily drop, the market is still up 47.5 percentage points over the past week, also an extreme move for its 7-day history. The contract resolves “Yes” only on an official Hamas disarmament announcement within the market window ending December 31, 2026, 11:59 PM ET.
Why It Likely Moved
- The repricing follows reports on July 31 that Hamas has reached an agreement to disarm in Gaza, according to AP News, which likely drove the initial weekly surge.
- The French Ministry for Europe and Foreign Affairs announced an accord on Hamas disarmament on July 31, 2026, providing a government-level corroboration that appears to have supported the earlier bid-up (French MFA).
- The 24-hour pullback appears driven by uncertainty highlighted in NPR’s July 31 report that President Trump announced a deal but key details, conditions, and timelines remain unresolved.
- Markets also reacted to an AP News analysis (July 31) underscoring implementation and enforcement challenges around a ceasefire board linked to the deal, prompting reassessment of execution risk before the year-end deadline.
- Traders may be differentiating between third-party or governmental announcements and the contract’s requirement for a credible, official Hamas policy announcement to satisfy resolution criteria.
How Strong the Move Is
The daily move is classified as an extreme downside shock by the market’s 24-hour z-score, pointing to an unusually sharp pullback after headline-driven gains. In contrast, the 7-day z-score also reads as extreme on the upside, indicating the broader weekly repricing remains intact.
Taken together, this looks like a headline spike earlier in the week followed by a sharp consolidation, rather than a confirmed reversal. Confirmation would require sustained selling and alignment of shorter- and longer-term signals.
Cross-Market Confirmation
- Israel closes airspace by August 31: up 10pp in 24h, down 10pp in 7d — a short-term rise diverging from this market’s 24h decline.
- Israel closes airspace by August 15: up 12pp in 24h, down 13pp in 7d — similar divergence in the 24h tape.
- Israel closes airspace by July 31: down 0.45pp in 24h, down 22.7pp in 7d — does not confirm the disarmament market’s weekly surge.
Overall, related security-risk markets show mixed to divergent signals versus this contract’s 24-hour drop and 7-day jump.
News & Real-World Context
On July 31, 2026, AP News reported that Hamas says it has reached an agreement to disarm in Gaza. The same day, NPR reported President Trump announced a deal under which Hamas would disarm, noting many details and timelines remain unresolved. Also on July 31, AP News emphasized a high-stakes test for a ceasefire oversight board and associated implementation questions.
Government confirmation arrived the same day via the French Ministry for Europe and Foreign Affairs (July 31, 2026), which announced an accord on Hamas disarmament — an official policy signal that markets typically treat as higher-weight evidence than media reporting.
Broader macro indicators do not suggest a parallel risk-off move: the VIX sits at 15.99 (down 13.94% over 7 days), Brent crude is $90.12/bbl (down 6.88% over 7 days), and the US Dollar Index is 99.803 (down 1.64% over 7 days). These levels point to a move concentrated in event-specific headlines rather than broad macro stress.
Bottom Line
The market rapidly repriced higher on July 31 following government and media reports of a Hamas disarmament deal, then sold off sharply as traders weighed unresolved implementation details and the contract’s requirement for an official Hamas announcement. This looks like a headline-driven, volatile adjustment rather than a confirmed reversal.
With the resolution window open until December 31, 2026, pricing will likely hinge on whether a formal, credible policy announcement by Hamas materializes and is verified by consensus reporting.
Market Conditions at Time of Writing
- Current Probability: 64%
- 24h Change: -28pp
- 7d Change: +47.5pp
- Volume (24h): $777,297.64
- Open Interest: $79,571.03
- Spread: 1.0pp
- Z-score (24h): 72.0 (extreme, down)
