Recent developments position one VEI ≥4 eruption as the leading market outcome, driven by the September 2026 Anak Krakatau event that produced a sustained ash plume reaching approximately 15 km, meeting the lower threshold for VEI 4 on the Volcanic Explosivity Index. Ongoing activity at Semeru and other Indonesian volcanoes has generated frequent smaller explosions with plumes typically under 5 km, consistent with their long-term patterns but insufficient for additional VEI 4 classification so far. Historical data show VEI ≥4 events occur irregularly, often clustered in tectonically active regions, with model consensus and USGS/Smithsonian monitoring indicating low likelihood of rapid escalation in the remaining months absent major seismic or deformation signals. Upcoming satellite observations and ground-based seismic updates through year-end will clarify whether further intensification occurs.