Traders price "No" at 72.5% for a qualifying natural disaster in 2026 because extreme events meeting typical resolution thresholds—such as a magnitude 9.0+ earthquake or VEI 6+ volcanic eruption—remain statistically rare. USGS and Smithsonian Institution records show roughly one VEI-6 eruption per century and 9.0+ quakes occurring only a few times per millennium globally. Seismic and volcano monitoring networks report only background activity through the first five months of 2026, with no shifts in long-term tectonic or magmatic forecasts. This market-implied odds reflect aggregated trader assessment of low tail-risk probability ahead of continued global surveillance through year-end.