**Geopolitical escalation in the 2026 Iran conflict has intensified Houthi threats to disrupt or close the Bab el-Mandeb Strait, a key chokepoint handling roughly 4.2 million barrels per day of petroleum liquids in early 2025.** Renewed warnings in April–June 2026, including targeting Israeli-linked vessels, have prompted major carriers like Maersk to pause Red Sea transits, sustaining the shift of Asia-Europe traffic around the Cape of Good Hope and elevating insurance premiums and freight rates. Oil markets price in limited additional upside from Bab el-Mandeb risks given the larger Strait of Hormuz disruption, while shipping volumes through the Suez route remain suppressed versus pre-2024 levels. Trader consensus on Polymarket assigns low near-term probabilities to effective closure, reflecting naval patrols, vessel rerouting flexibility, and historical patterns of asymmetric but contained attacks since the October 2025 ceasefire. Key upcoming catalysts include further Iran-related diplomatic developments or Houthi operational signals that could alter risk premiums.
Résumé expérimental généré par IA à partir des données Polymarket. Ceci n'est pas un conseil de trading et ne joue aucun rôle dans la résolution de ce marché. · Mis à jourBab el-Mandeb blockade threatens global oil and trade routes
September 30 rises to 23%4%
On July 21, 2026, reports confirmed the Houthi blockade's potential to widen the Iran war and disrupt global oil supplies and international trade, emphasizing the strait's vital role in connecting the Red Sea to the Gulf of Arabia and its importance for Saudi oil exports.
Houthis blockade raises fears over Bab el-Mandeb trade route security
August 31 jumps to 18%7%
Following the blockade declaration, on July 21, 2026, concerns intensified about the security of navigation through the Bab el-Mandeb Strait, with increased insurance premiums and shipping reroutes. Saudi-led coalition vowed to protect commercial vessels, but the blockade's impact on trade and oil flows remained significant.
Houthi blockade announcement triggers market concerns over Bab el-Mandeb closure
December 31 drops to 33%12%
Following the Houthi declaration of a maritime blockade on Saudi shipping, markets reacted with increased probabilities of Bab el-Mandeb closure, reflecting fears of significant disruption to global trade and energy supplies through this strategic chokepoint.
Yemeni Houthis declare naval blockade targeting Saudi shipping in Bab el-Mandeb Strait
September 30 rises to 24%1%
The Yemeni Houthi movement announced a naval blockade against Saudi Arabia, threatening to disrupt over 4.5 million barrels of oil transit through the Bab el-Mandeb Strait. This declaration heightened market fears of closure, pushing up odds temporarily for closure by September 30 and December 31.
Yemeni Houthis declare naval blockade targeting Saudi shipping
July 31 drops to 4%8%
The Yemeni Houthi movement declared a naval blockade against Saudi Arabia, threatening to disrupt over 4.5 million barrels of oil transit through the Bab el-Mandeb Strait. This declaration heightened market concerns about a potential effective closure, reflected in increased odds in prediction markets and elevated risk premiums in shipping and energy sectors.
Prediction markets surge on Bab el-Mandeb closure fears amid new blockade
September 30 jumps to 23%10%
On July 21, 2026, prediction markets reflected a surge in odds for Bab el-Mandeb Strait closure following the Houthi naval blockade declaration, as traders assessed the risk to Saudi oil exports and global energy markets, pushing prices for closure outcomes higher.
US intensifies strikes on Iran amid rising Houthi threats in Bab el-Mandeb region
August 31 jumps to 18%6%
The US conducted multiple strikes on Iranian command centers and missile capabilities, aiming to degrade Iran's ability to threaten maritime traffic, while Houthis prepared attacks near Bab el-Mandeb, increasing regional tensions and market uncertainty.
Houthis declare maritime blockade on Saudi shipping at Bab el-Mandeb Strait
July 31 drops to 5%7%
On July 20, 2026, Yemen's Houthis formally declared a maritime blockade on Saudi shipping through the Bab el-Mandeb Strait, effectively closing the strait to Saudi-linked vessels. This blockade threatened to disrupt global oil exports and trade, causing a sharp increase in market concern and price volatility.
Houthis declare maritime blockade of Saudi shipping at Bab el-Mandeb Strait
July 31 dips to 5%4%
On July 20, the Houthis announced a maritime embargo against Saudi Arabia at the Bab el-Mandeb Strait, effectively closing the strait to Saudi shipping and escalating the regional conflict by threatening a key global trade chokepoint.
Iran urges Houthis to prepare for Bab el-Mandeb disruption if US targets energy infrastructure
August 31 rises to 12%1%
Iran reportedly instructed its Houthi allies to prepare to disrupt oil tanker traffic through the Red Sea if the US attacks Iran's power grid or energy infrastructure, raising fears of expanded conflict and increased risk to the Bab el-Mandeb Strait's security.
Russian FM Lavrov warns Bab el-Mandeb closure would harm global oil market
September 30 jumps to 19%6%
On July 16, 2026, Russian Foreign Minister Sergey Lavrov publicly stated that a potential closure of the Bab el-Mandeb Strait would severely harm international trade and the global oil market, underscoring the strait's strategic importance and increasing geopolitical risk awareness.
Houthis announce intent to block Bab el-Mandeb Strait simultaneously with Hormuz closure
July 31 drops to 6%6%
On July 13, the Yemeni Houthis declared their intention to block the Bab el-Mandeb Strait in coordination with Iran's cessation of passage through the Strait of Hormuz, signaling a potential escalation in maritime disruptions affecting global trade routes.
Saudi airstrikes on Sanaa airport escalate Yemen conflict
July 31 drops to 7%5%
Saudi Arabia conducted airstrikes on Sanaa International Airport on July 13, 2026, escalating hostilities with the Houthis. In response, Houthi officials warned of readiness to close the Bab el-Mandeb Strait, heightening fears of a blockade and impacting market prices for closure probabilities.
Final data confirms Bab el-Mandeb Strait remains open with transit calls above closure threshold
September 30 dips to 13%1%
Data published for the end of the analysis window confirmed that the 7-day moving average of transit calls remained above 10, leading to market resolution favoring no closure.
Bab el-Mandeb Strait traffic remains critically low amid blockade fears
September 30 dips to 13%1%
IMF PortWatch data showed transit calls at a low point, reflecting the effective closure of the Bab el-Mandeb Strait due to ongoing blockades and military threats, confirming market expectations of a near-total shutdown by late June.
Transit calls at Bab el-Mandeb Strait reach lowest point but remain above closure threshold
September 30 drops to 14%10%
The 7-day moving average of transit calls dropped to a low of 11, close to the closure threshold, but did not fall to or below 10, keeping the market's closure probability low.
Iran signals Houthis to close Bab el-Mandeb if US hits power network
September 30 drops to 17%5%
On June 16, 2026, reports emerged that Iran instructed Yemen's Houthis to close the Bab el-Mandeb Strait if the US attacks Iran's power network, signaling a potential escalation and raising risk premiums for shipping through the strait. This increased market concern about a possible closure, though no immediate closure occurred.
US maritime advisory warns of ongoing Houthi threats in Bab el-Mandeb and Red Sea
September 30 rises to 28%1%
A US maritime advisory highlighted continued threats by the Houthis to commercial shipping in the Bab el-Mandeb Strait and surrounding waters, underscoring persistent security risks that contribute to the strait's effective closure and market uncertainty.
Iran declares Bab el-Mandeb Strait closed and Israeli ships legitimate military targets
September 30 dips to 14%2%
Iran publicly declared the Bab el-Mandeb Strait closed to Israeli vessels and labeled them legitimate military targets, intensifying the blockade and signaling a high risk of sustained closure, which contributed to market price declines.
Houthis renew naval blockade on Israel, close Bab el-Mandeb Strait to Israeli shipping
September 30 jumps to 27%10%
Yemen's Houthi rebels announced a renewed naval blockade targeting Israeli shipping in the Red Sea and declared closure of the Bab el-Mandeb Strait to Israeli vessels, intensifying the maritime security crisis and threatening a critical global shipping route.
Iran and allies declare Bab el-Mandeb Strait closed to Israeli ships
September 30 jumps to 27%10%
Iran and its allies, including the Houthis, declared the Bab el-Mandeb Strait completely closed to Israeli shipping in solidarity with Lebanon and Iran, signaling a significant escalation in maritime blockade efforts affecting a key global trade route.
Iran-backed Houthis declare Bab el-Mandeb Strait completely closed to Israeli ships
September 30 drops to 16%5%
The Houthis announced a complete closure of the Bab el-Mandeb Strait to Israeli maritime traffic, escalating the blockade and raising the risk of a full operational shutdown of the strait, which pressured market prices downward.
Iran's Revolutionary Guard threatens to close Bab el-Mandeb Strait amid escalating conflict
September 30 jumps to 26%5%
Iran's Revolutionary Guard issued threats to close the Bab el-Mandeb Strait if Israel did not halt strikes in Gaza and Lebanon, raising the risk of a dual chokepoint crisis alongside the Strait of Hormuz and further disrupting global oil supplies.
UNCTAD and IMF PortWatch update on Red Sea shipping disruptions
September 30 drops to 19%9%
New data from UNCTAD and IMF PortWatch highlighted ongoing significant reductions in shipping traffic through the Red Sea and Bab el-Mandeb Strait, confirming persistent disruptions but no complete closure.
Iran signals expansion of maritime blockade to Bab el-Mandeb Strait
September 30 jumps to 26%5%
Iran's state-linked Tasnim News Agency reported Tehran and its regional allies considering actions to affect the Bab el-Mandeb Strait after the effective closure of the Strait of Hormuz, raising fears of a major disruption in global trade and energy supplies.
Iran halts talks with US, vows to block Bab el-Mandeb Strait
September 30 plunges to 21%29%
Iran's state-linked Tasnim News Agency reported that Iran and its allies resolved to completely block the Strait of Hormuz and activate other fronts including the Bab el-Mandeb Strait, signaling an escalation in maritime disruption threats. This announcement heightened fears of a broader blockade affecting global trade routes.
Iran-backed groups place closure of Bab el-Mandeb Strait on agenda
September 30 dips to 16%3%
Iran and allied militant groups publicly included the complete closure of the Bab el-Mandeb Strait as part of their strategic objectives, heightening fears of a blockade and contributing to market price drops.
UKMTO reports explosion near Muscat, Oman, raising regional tensions
September 30 jumps to 26%5%
A tanker reported an external explosion near Muscat, Oman, increasing regional security concerns that could impact shipping through nearby strategic chokepoints including Bab el-Mandeb. This event briefly raised fears of further disruptions.
Houthis prepare contingency plans to close Bab el-Mandeb Strait with Iran
September 30 jumps to 27%6%
Reports emerged that the Houthis were preparing to close the Bab el-Mandeb Strait in coordination with Iran if the conflict escalated, signaling potential for a full blockade and increasing market concerns about strait accessibility.
Bab el-Mandeb Strait transit calls dip but stay above closure threshold
September 30 drops to 13%7%
Data showed a temporary dip in ship arrivals to near the threshold but still above 10, causing a brief price trough at 13% before rebounding. This indicated continued, though reduced, maritime activity through the strait.
Regional tensions cause temporary transit fluctuations but no closure at Bab el-Mandeb
September 30 dips to 21%3%
Despite spikes in regional conflict, transit data showed fluctuations but did not fall below the closure threshold, leading to market price volatility but no confirmation of closure.
U.S. Energy Secretary claims rising traffic at Strait of Hormuz despite data
September 30 rises to 25%4%
U.S. Energy Secretary Chris Wright stated on CNBC that commercial traffic through the Strait of Hormuz was rising significantly, but IMF PortWatch data showed only minimal transit. This discrepancy affected market confidence in closure risk assessments.
Ethiopia and Eritrea agree to ceasefire in border conflict
September 30 plunges to 14%36%
After months of fighting along their shared border, Ethiopia and Eritrea reached a ceasefire agreement, reducing regional tensions and allowing maritime traffic to resume normal levels through the Bab el-Mandeb Strait.
Reports show Bab el-Mandeb Strait transit calls remain above closure threshold
September 30 plunges to 24%26%
Initial data releases indicated that the 7-day moving average of ship arrivals through the Bab el-Mandeb Strait was above 10, reducing market expectations of an effective closure. This led to a sharp drop in the market price from 50% to 24%.


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