Ongoing low-level exchanges between Israeli forces and Hezbollah in southern Lebanon continue to shape trader assessments of escalation risks to Beirut, with the IDF completing major tunnel demolitions at the Ali Taher ridge in mid-September after Hezbollah drone and roadside attacks wounded troops. Lebanese Prime Minister Nawaf Salam met U.S. officials in late September to press for full IDF withdrawal and Hezbollah disarmament under the existing framework, while Hezbollah leader Naim Qassem rallied supporters demanding Israeli pullback before any further talks. These developments, alongside persistent cross-border incidents through September, sustain uncertainty over whether targeted strikes could extend to Hezbollah strongholds in Beirut's southern suburbs, consistent with patterns seen earlier in 2026. Diplomatic efforts and the fragile southern security zone remain key variables traders monitor for shifts in implied probabilities.