The elevated market-implied odds favoring no megaquake by June 30 stem primarily from the extreme rarity of magnitude 9 or greater events, which occur globally only a few times per century on average. Official USGS monitoring of major subduction zones shows no anomalous strain buildup, foreshock sequences, or seismic swarms capable of triggering such an event within the narrow remaining window. Historical recurrence intervals for megathrust earthquakes in high-risk regions like the Cascadia or Japan trenches typically span decades to centuries, far exceeding the timeframe to resolution. No recent model updates or observational data from global networks have indicated accelerated risk, reinforcing trader consensus around the low baseline probability.