Mount Vesuvius remains in a green-alert quiescent state through mid-2026, with INGV Osservatorio Vesuviano reporting only background fumarolic emissions and persistently low-energy seismicity over the past 50 years. No significant ground deformation, seismic swarms, or elevated gas fluxes—key precursors to magma ascent—have been detected, consistent with the volcano’s dormancy since its last VEI 3 eruption in 1944. Traders assign a 94.9% implied probability to “No” because an abrupt VEI 1+ event within the remaining months would require unusually rapid unrest that contradicts both historical patterns and current geophysical baselines. A realistic challenge could arise only from undetected deep magmatic intrusion triggering sudden escalation, though monitoring networks make such undetected progression unlikely before year-end.