Traders assign a 91.4% implied probability to no VEI ≥6 eruption occurring in 2026 because such events are exceptionally rare, occurring only several times per century on average, with the most recent confirmed example being Mount Pinatubo in 1991. Global monitoring networks, including USGS and Smithsonian Global Volcanism Program reports through mid-September 2026, show ongoing activity limited to lower-intensity eruptions at sites such as Kīlauea, Semeru, and Manam, with maximum VEI values of 4 and no large-scale precursory signals like rapid caldera inflation or massive magma mobilization. With roughly 3.5 months remaining, the absence of escalating unrest at high-threat systems reinforces the consensus. A sudden shift could occur only if new monitoring data revealed rapid changes at a major caldera or an unforeseen event at a poorly instrumented volcano, though current observations make this improbable.