The Bab el-Mandeb Is Likely Staying Open

The Bab el-Mandeb Strait is unlikely to be effectively closed before year's end, and the broader picture emerging from the Iran standoff is one of contained disruption rather than cascading maritime catastrophe. The odds of a full closure at the strait stand at 20% — a figure that has drifted down from a recent peak of 26% just five days ago — and every major related signal is pushing in the same direction: the worst is probably not coming.

What makes this reading credible is how consistently the surrounding evidence reinforces it. The Israel-Iran ceasefire is holding with high confidence, at 91%, and Iran's grip on its own territory appears stable — the probability that Kharg Island changes hands or that the Iranian regime falls before 2027 sits in low single digits. A U.S. invasion before 2027 remains unlikely at 16%. Taken together, these markets describe a frozen conflict, not an escalating one. The players are locked in place, and the chokepoints are not being weaponized further.

The most telling single move in the past 24 hours belongs to the Saudi East-West Pipeline, whose restart odds surged nearly 10 percentage points to 88%. That pipeline is the kingdom's primary bypass around the Strait of Hormuz, and a confident bet on its revival suggests traders believe Riyadh sees the immediate crisis as manageable enough to restore its own energy infrastructure. That is not the behavior of a market expecting regional war to spread south toward the Bab el-Mandeb.

Yet the picture is not clean. The Strait of Hormuz itself remains deeply abnormal: the odds that transit traffic returns to normal by September are essentially zero at 1%, and a longer-horizon question — whether vessel calls through Hormuz recover above a healthy threshold before mid-2028 — has risen to 68% but moved in the positive direction only today, after weeks of stagnation. An Iran-Oman diplomatic agreement on Hormuz, which had been seen as a near-term bridge, shed 8 percentage points overnight to 32%, suggesting that a tidy negotiated solution is looking less likely even as the broader ceasefire holds. The money is not betting on a clean exit; it is betting on a muddle-through.

The Bab el-Mandeb closure odds have crossed conviction thresholds twice in the seven weeks since tracking began, so the current 20% reading deserves some humility. A resumption of Houthi attacks, a collapse of the Israel-Iran ceasefire, or a breakdown in back-channel diplomacy could reprice these markets quickly. The path the money now favors — ceasefire intact, pipelines reopening, straits stressed but not shut — rests on a fragile equilibrium. What would break it is not hard to imagine; what would confirm it is a Hormuz diplomatic agreement materializing before autumn and Saudi oil flows visibly recovering. Until then, the Bab el-Mandeb stays open, probably, and the broader shipping crisis grinds on without resolution.