Wall Street is sharply divided on the potential economic and market fallout, as President Donald Trump announced a U.S. Navy blockade of the Strait of Hormuz following failed nuclear talks with Iran.

Shrugging Off Geopolitical Risk

Despite escalating tensions and the threat of disrupted global oil supplies, some market veterans remain steadfastly bullish. Ed Yardeni, president of Yardeni Research, noted that Wall Street’s reaction to the unprecedented naval blockade has so far been a “total shrug.”

Pointing to a historically “remarkably resilient” U.S. economy, Yardeni argues that past international conflicts have often proven lucrative for investors who stay the course. “Geopolitical crises tend to be buying opportunities,” Yardeni told CNBC, suggesting the current market dip is just another chance to buy.

Looming ‘Final Straw’

Conversely, other experts warn that markets might be dangerously complacent. Economist David Rosenberg observed that investors seem to be giving the Trump administration the benefit of the doubt, playing a geopolitical “chess game two pieces ahead.”

However, Rosenberg cautioned that the real danger lies in direct military confrontation.

If Iranian forces were to retaliate against the blockade by attacking the U.S. Navy, Rosenberg warned that such an escalation “would probably be the final straw,” ending the current market stability and triggering a severe shock.

Stalled Talks Trigger Naval Action

The sudden blockade directive follows the collapse of marathon 20-hour negotiations in Islamabad. Vice President JD Vance and a U.S. delegation departed without securing commitments from Tehran to halt its nuclear ambitions.

In response, Trump ordered the U.S. Navy to intercept vessels entering or exiting the vital oil transit route.

While experts across the aisle agree that Americans will likely “feel it at the pump” due to rising core inflation and spiking oil prices, the ultimate question is whether Wall Street’s calm will hold or buckle under the pressure of a direct naval clash.

How Have Markets Performed In 2026?

The S&P 500 index has advanced 0.40% year-to-date. Similarly, the Nasdaq Composite index was down 0.22%, and the Dow Jones tumbled 0.34% YTD.

The SPDR S&P 500 ETF Trust (NYSE:SPY) and Invesco QQQ Trust ETF (NASDAQ:QQQ), which track the S&P 500 and Nasdaq 100 indices, respectively, closed higher on Monday. The SPY was up 0.98% at $686.10, while the QQQ advanced 1.03% to $617.39.

Meanwhile, Dow tracker, State Street SPDR Dow Jones Industrial Average ETF Trust (NYSE:DIA), rose 0.60% to close at $482.13 on Monday.

Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.

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