The market's strong 93.7% implied probability for no VEI ≥6 eruption in 2026 stems primarily from the low historical frequency of such events, with recurrence intervals typically spanning 50–100 years or longer based on global records from the Smithsonian Global Volcanism Program and USGS data. The most recent VEI 6 was Pinatubo in 1991, and no large-magnitude unrest or precursors have emerged at candidate volcanoes through mid-2026, consistent with ongoing monitoring reports showing mostly modest activity like Sakurajima ash emissions. Trader consensus reflects this statistical baseline plus real-time absence of escalation signals. That said, the odds could shift if a long-dormant system like those producing past surprises experiences rapid magma recharge, though current seismic and gas data show no such trajectory.