Traders assign only a 6.3% implied probability to a magnitude 9.0 or greater earthquake occurring before 2027, reflecting the brief remaining window through December 2026 and well-documented global recurrence rates. USGS historical catalogs show just one to three such events per century on average, with the most recent in 2011 and intervals between great subduction-zone ruptures often spanning 200–800 years at individual zones like Cascadia or the Aleutians. Recent seismic activity, including several magnitude 7.3–7.8 events in 2026, remains well below the extreme threshold and aligns with typical annual rates of 15–20 magnitude 7+ quakes worldwide. No official monitoring data from the USGS or comparable agencies indicate elevated stress accumulation or foreshock patterns that would materially raise near-term odds. While an unexpected multi-segment rupture could still occur, the combination of low base rates and limited time strongly supports the current market consensus.