U.S. stocks retreated sharply Tuesday, erasing Monday’s dramatic rebound, as rising oil prices and climbing bond yields signaled that the deepening Iran conflict may carry more durable economic consequences than investors initially expected.

The Dow Jones Industrial Average fell roughly 570 points, or 1.2%, after being down more than 1,200 points at its intraday low. The S&P 500 declined 1.3%, while the Nasdaq Composite lost 1.4%. At session troughs, both the S&P 500 and Nasdaq were down more than 2.5%, underscoring the intensity of early selling pressure.

The reversal marks a clear shift from Monday’s dip-buying optimism toward a more cautious reassessment of geopolitical risk.

Oil Shock Fuels Inflation Concerns

Brent crude surged another 6%, topping $82 per barrel after a similar spike the previous day. West Texas Intermediate crude climbed above $75. The move reflects escalating fears that the U.S.-Iran conflict could significantly disrupt global supply flows, particularly following statements that the Strait of Hormuz has been closed.

Roughly 20% of global oil consumption passes through the Strait, making any sustained shutdown a material macro risk. Markets are increasingly pricing in the possibility that elevated energy costs could persist, pushing inflation expectations higher.

Treasury yields climbed in response, complicating the outlook for Federal Reserve rate cuts. Investors who had been banking on monetary easing to support economic growth are now forced to weigh the risk that sticky energy-driven inflation could delay policy accommodation.

Broad Selling Across Sectors

Selling pressure was widespread. All S&P 500 sectors traded in the red, with materials, industrials, and consumer discretionary stocks suffering the steepest losses. These sectors are particularly vulnerable to rising input costs and higher borrowing rates.

Technology names that had fueled Monday’s rebound, including Nvidia, moved lower. U.S. memory stocks followed declines seen in Asian semiconductor markets, highlighting cross-border sensitivity in supply chains.

Financial stocks were also under strain. Shares of Blackstone fell after reports of $1.7 billion in net outflows from one of its private credit funds, reinforcing concerns about liquidity pressures in alternative asset classes.

Even traditional defensive plays offered limited protection. Gold retreated after earlier gains, while the CBOE Volatility Index surged to its highest level since November, signaling rising demand for downside protection.

From Short-Term Shock to Duration Risk

Historically, U.S. markets have tended to recover quickly from geopolitical flare-ups. Monday’s rebound reflected that playbook. However, comments suggesting the conflict could last more than four weeks — and potentially far longer — have introduced duration risk into the equation.

A brief disruption may prove manageable. A prolonged conflict that sustains oil above $80 or pushes it materially higher could compress corporate margins, weigh on consumer spending, and revive inflation pressures at a delicate stage of the economic cycle.

Investors are now navigating a more complex landscape where oil prices, bond yields, and inflation expectations may drive equity direction more than earnings fundamentals in the near term.

The market’s message is clear: as long as the Strait of Hormuz remains closed and energy markets volatile, geopolitical risk cannot be treated as a temporary headline event.