Bullstory
Jul 12, 2026

U.S.-Iran tensions have effectively halted traffic through the Strait of Hormuz, sending oil prices surging and U.S. stocks lower.

With Iran expanding its attacks and declaring a “closure of the strait,” tanker traffic through the Strait of Hormuz has nearly stopped. As a result, oil prices hit a multi-week high and U.S. stocks fell.


Traffic through the Strait of Hormuz effectively halted, U.S. stocks fall on rising oil prices

Iran declared that it would close the Strait of Hormuz. It is a maritime passage through which about 5 of the world’s crude oil flows. Immediately after Iran’s announcement, tanker traffic stopped, sending oil prices soaring and U.S. stocks falling. After reading this, you can immediately understand what is happening in the strait now and what blow is hitting the stock market.1: about

Iran justified the blockade by saying it had attacked unauthorized vessels. After U.S. airstrikes, Iran’s retaliation expanded and commercial vessel movement slowed. Tankers are barely able to pass through.

On the ground, traffic is already completely backed up. 7month 9day and 10day observations showed tanker passage slowing sharply, and some sections fell into congestion.

However, President Trump said 7month 12day, "the strait is open to commercial traffic." On the ground, ships are blocked, but the top ruler says everything is normal. This gap is making the market even more volatile.

Oil prices 7month 8day hit their highest level in several weeks. Concerns that crude supply could be cut off pushed prices higher. The dollar slipped slightly on geopolitical tensions, even though labor market indicators were steady.

The variables moving the market now are simple.

  • Trump’s remarks vs. conditions on the ground: The president says it is "open," but tankers are stopped in the strait
  • Oil price surge: Supply concerns pushed it to a multiweek high on 7month 8day
  • Stock market decline: A result of pricing in both higher oil and geopolitical risks at once
  • Dollar weakness: Even the dollar, a safe-haven asset, was shaken by the tensions

The short-term market direction depends on whether there is further conflict. If both sides step back, oil prices will stabilize, but if retaliation continues, a blockade of the strait becomes reality. With Trump’s remarks and the delays on the ground coexisting, this is the most uncertain moment.

Sources: Reuters,Investing.com News

Bullstory synthesized this report from the linked sources. AI may have assisted the writing process. Check the original reports for factual confirmation.