The United States has upheld a voluntary moratorium on nuclear explosive testing since its last underground detonation in 1992 at the Nevada National Security Site, relying instead on the Stockpile Stewardship Program for non-explosive validation of its arsenal. President Trump's October 2025 directive to the Pentagon for renewed testing preparations sparked debate but was clarified by Energy Secretary Chris Wright as excluding actual explosions, focusing on subcritical experiments. Congressional opposition persists, with lawmakers like Rep. Dina Titus introducing bills to bar funding and recent April 22 House testimony emphasizing adherence to global norms amid Russia and China activities. No verified steps toward an explosive test have emerged in the past 30 days, sustaining trader skepticism on near-term resumption ahead of potential FY2027 appropriations votes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedU.S. nuclear test by...?
U.S. nuclear test by...?
$642,529 Vol.
June 30, 2026
2%
September 30, 2026
6%
December 31, 2026
13%
$642,529 Vol.
June 30, 2026
2%
September 30, 2026
6%
December 31, 2026
13%
A nuclear test is defined as the intentional non-combat detonation of a device by the US that produces a nuclear chain reaction (fission or fusion), regardless of yield.
Accidents, radiological dispersal devices (bombs that spread radioactive material using conventional explosives such as "dirty bombs"), or actions by third parties will not count toward this market's resolution.
Tests not explicitly claimed by US may still qualify if a clear consensus of credible reporting attributes the nuclear detonation to US. For example, an unclaimed nuclear test analogous to the 1979 "Vela Incident" would count if credible reporting attributes it to the US.
The resolution source for this market will be a broad consensus of credible reporting.
Market Opened: Mar 31, 2026, 3:32 PM ET
Resolver
0x65070BE91...A nuclear test is defined as the intentional non-combat detonation of a device by the US that produces a nuclear chain reaction (fission or fusion), regardless of yield.
Accidents, radiological dispersal devices (bombs that spread radioactive material using conventional explosives such as "dirty bombs"), or actions by third parties will not count toward this market's resolution.
Tests not explicitly claimed by US may still qualify if a clear consensus of credible reporting attributes the nuclear detonation to US. For example, an unclaimed nuclear test analogous to the 1979 "Vela Incident" would count if credible reporting attributes it to the US.
The resolution source for this market will be a broad consensus of credible reporting.
Resolver
0x65070BE91...The United States has upheld a voluntary moratorium on nuclear explosive testing since its last underground detonation in 1992 at the Nevada National Security Site, relying instead on the Stockpile Stewardship Program for non-explosive validation of its arsenal. President Trump's October 2025 directive to the Pentagon for renewed testing preparations sparked debate but was clarified by Energy Secretary Chris Wright as excluding actual explosions, focusing on subcritical experiments. Congressional opposition persists, with lawmakers like Rep. Dina Titus introducing bills to bar funding and recent April 22 House testimony emphasizing adherence to global norms amid Russia and China activities. No verified steps toward an explosive test have emerged in the past 30 days, sustaining trader skepticism on near-term resumption ahead of potential FY2027 appropriations votes.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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