**Trader consensus heavily favors zero large eruptions (VEI ≥4) in 2026 at 66.5% implied probability**, reflecting the low historical frequency of such events—typically fewer than one per year on average globally, based on Smithsonian Global Volcanism Program records. As of early August 2026, official monitoring shows dozens of smaller eruptions but no confirmed VEI-4 or higher activity, with ongoing effusive or moderate explosive events at sites like Kīlauea and Sheveluch falling below the threshold. This absence through more than seven months of the year strengthens the market-implied outlook for zero, though uncertainty remains due to the potential for rapid escalation at restless volcanoes. Key resolution criteria hinge on GVP-attributed starts meeting the VEI scale (≥0.1 km³ ejecta and plume heights often exceeding 10 km). Future model updates or unrest reports from agencies like USGS could shift sentiment if new explosive activity emerges before year-end.