Bab el-Mandeb Strait effectively closed by October 31?

Probably not — available reports put total Bab el-Mandeb traffic around 26–30 vessels per day, while the 8.6 figure is tankers only and does not establish that PortWatch’s all-ship 7-day average is at or below 10. A sharp further deterioration before November 1, or a later PortWatch revision revealing a qualifying average, could prove this wrong.

Probably not — current traffic estimates (26-30 vessels/day, 8.6 tankers/day) remain well above the 10 threshold for the full "Arrivals of Ships" measure, and only about two weeks remain before resolution. A sudden drastic drop to ≤10 by Nov 1 would require an abrupt escalation in attacks/closures not currently evidenced in the data.

Probably not — overall daily ship arrivals tracked by IMF PortWatch have remained in the 25–30 range, well above the strict threshold of 10 or fewer per day on a 7-day moving average. With only two weeks remaining until the November 1 cutoff, an almost total collapse in remaining commercial traffic would be required. An unprecedented regional escalation or intense blockade halting virtually all remaining Chinese, Russian, and regional vessel transits could prove this wrong.

Probably not — recent PortWatch-adjacent reports still show ~26–30 transits/day through early October, far above the ≤10 7-day average needed, and two weeks is a short window for a total collapse. A sudden Houthi or military shock that empties the strait could still produce the threshold, but nothing in the latest summaries indicates that has occurred or is imminent.

Probably not — recent reports show Bab el-Mandeb traffic around 26–30 transits/day as of early October 2026, well above the 10-ship threshold, though tanker-only data dipped to 8.6/day. The full PortWatch 'Arrivals of Ships' measure is unlikely to fall to ≤10 within two weeks given the broader transit counts. Main risk: a sudden escalation or blockade could sharply cut all shipping, but no current source confirms that.

Probably not — the full 'Arrivals of Ships' metric was around 26-30 vessels/day as of early October 2026, far above the threshold of 10, and even the tanker-only figure of 8.6 doesn't represent the broader metric used for resolution. A drop from ~30 to ≤10 in under three weeks would require a sudden catastrophic escalation (e.g., complete blockade or major military conflict), which seems unlikely given current trends. The main risk to this call would be an unforeseen dramatic escalation in the Red Sea region.

Probably not — Recent data shows Bab el-Mandeb traffic at 26-30 vessels/day, well above the 10-ship threshold, and no confirmed PortWatch average at or below 10. The strait remains disrupted but not effectively closed. A sudden, severe escalation in attacks or blockades could push traffic below 10 by October 31.

Probably not — recent data shows tanker traffic alone at 8.6/day, but total ship arrivals were around 26-30/day in early October, well above the ≤10 threshold. For the 7-day average to drop to 10 or below by November 1, there would need to be a near-total shutdown of the strait, which hasn't been indicated in current reporting. The main risk is a sudden escalation in Houthi attacks or a regional conflict that causes most shipping to halt within the next two weeks.

Probably not — full PortWatch arrivals have been running ~26–30 vessels/day, far above the ≤10 threshold, and only a near-total blockade in the next two weeks could collapse the 7-day average that fast. The 8.6 tankers/day figure is a subset, not the resolution metric. Main risk: a sudden major escalation (e.g., effective closure of Red Sea shipping) that slashes all arrivals below 10 before Nov 1.

Probably not — the available data shows Bab el-Mandeb traffic consistently well above the 10-vessel threshold, with recent figures around 26-30 transits per day. To resolve YES, the 7-day moving average would need to drop by more than 60% from current levels within the next two weeks, which would require an extreme and sudden escalation in disruptions. The main risk is an unexpected major military escalation or blockade that could halt nearly all traffic, but this seems unlikely given the gradual nature of the current disruption.