Prediction HFT
UKRAINE
U.S. nuclear test by...?

U.S. nuclear test by...?

MARKETS6
CLOSESMar 31, 2026 ยท 12:00 AM UTC
EVENT VOLUME
$320
MARKETS
6
LIQUIDITY
$28k

Markets in this event

6 markets ยท sorted by volume

Event activity

Across all 6 markets
24H VOLUME
$320
Past 24 hours
TOTAL VOLUME
$764k
Since creation
LIQUIDITY
$28k
Available to trade

About this event

Context for traders

This market will resolve to "Yes" if the US conducts a nuclear test by the listed date (ET). Otherwise, this market will resolve to "No". 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.

How trading works

Polymarket uses a central limit order book (CLOB) model โ€” you can buy or sell shares of any outcome at the current market price, or place limit orders. Prices represent implied probability: a $0.65 contract means the market prices a 65% chance of that outcome.

FAQ

Resolution & format
How are markets in this event resolved?+
Each market resolves based on the official outcome as verified by the UMA Optimistic Oracle.
When do these markets close?+
Trading closes at Mar 31, 2026 ยท 12:00 AM UTC. After close, the UMA oracle proposes a resolution and a 2-hour dispute window opens before final settlement.
How many markets are in this event?+
This event contains 6 markets. Each market settles independently โ€” you can trade any or all of them.
What happens if the resolution source is unavailable?+
If the primary resolution source is unavailable, the market may be delayed or resolved by UMA oracle vote using credible alternative sources. Polymarket's optimistic oracle has final authority on disputed resolutions.
How do I trade on Polymarket?+
You need a Polymarket account (sign up with email or crypto wallet). Connect a Polygon-compatible wallet, fund it with USDC, and you can buy or sell shares of any outcome. All settlements are in USDC.