NATO x Russia military clash by...?
DataSnack's model puts this at 12% seven days from now (10 Nov 2026); the market's number (Polymarket) is 12%. It has no graded forecasts yet; the first is graded on 12 Nov 2026.
DataSnack's read
A NATO-Russia clash stays priced low while talks, not the front, set the risk
A clash chance of 12% by December 31 shows how much of Europe's security risk depends on whether Moscow accepts a halt. The model's case rests on window decay at 1.02 of a constant-hazard pace and a -1.3 log-odds link to ceasefire odds.
The numbers
- The market's number (Polymarket) now: 12% (the market)
- DataSnack's model, seven days from now: 12%
- The market closes: 3 Jan 2027
- How it resolves: This market will resolve to "Yes" if there is a military encounter between the military forces of a NATO country and Russia between September 23 and December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". A "military encounter" is defined as any incident involving the use of force such as missile strikes, artillery fire, exchange of gunfire, or other forms of direct military engagement between NATO and Russian military forces. Non-violent actions, such as airspace violations, firing of warning shots (such as the June, 2021 Black Sea Confrontations between Russian forces a…
- Record: It has no graded forecasts yet; the first is graded on 12 Nov 2026.
- Replay on the last 38 days: off by 3.5 points against 4.9 points for standing still; closer on 25 of 38 days
- Fitted on 273 days of history
How the model works
With no clash in the coming week, the chance of one by the close decays as the window shortens. On top of that decay, a rising chance of a Russia-Ukraine ceasefire agreement lowers the clash chance.
- With no clash this week, the chance shrinks as the window closes, at 1.02 of a constant-hazard pace. DataSnack's author expected 1; the data say 1.02. A rough rule.
- When the chance of a ceasefire agreement rises, the clash chance moves by -1.3 in log-odds in log-odds per unit of that rise. DataSnack's author expected -1.5 in log-odds; the data say -1.3 in log-odds ± 0.82, fitted on the same days the replay scores. A rough rule.
Sources
- NATO x Russia military clash by...? · December 31: 12% on 10 Nov 2026
- Russia x Ukraine ceasefire agreement by...? · December 31, 2027: 70% on 10 Nov 2026
The record
It has no graded forecasts yet; the first is graded on 12 Nov 2026.
Waiting for their day:
- Made 5 Nov 2026 for 12 Nov 2026: 12%
- Made 6 Nov 2026 for 13 Nov 2026: 12%
- Made 7 Nov 2026 for 14 Nov 2026: 10%
- Made 8 Nov 2026 for 15 Nov 2026: 11%
- Made 9 Nov 2026 for 16 Nov 2026: 11%
- Made 10 Nov 2026 for 17 Nov 2026: 12%
Questions
What is DataSnack's forecast? DataSnack's model says 12% seven days from now.
What is the market's number? The market's number (Polymarket) is 12%.
How does the model work? It is an explicit equation fitted on data, with every link and source listed above. DataSnack's agents propose changes every night, and a replay against real data decides what is kept.
How accurate has it been? It has no graded forecasts yet; the first is graded on 12 Nov 2026. DataSnack's overall record is at https://datasnack.ai/accuracy.
Can I download the model? Readers who cover this market can export the model as an Excel workbook with working formulas from its page. A free example workbook: https://datasnack.ai/site/labs/datasnack-tariff-mortgage-lab.xlsx.
Canonical: https://datasnack.ai/m/ch:b921f889ee48 · Updated 10 Nov 2026 06:21 UTC · DataSnack forecasts are analysis, not investment advice.