Major US equity benchmarks edged lower Tuesday as investors navigated ongoing geopolitical tensions surrounding the Strait of Hormuz — a narrow shipping chokepoint through which roughly a fifth of the world's daily oil supply transits — and positioned themselves ahead of Wednesday's Consumer Price Index release, the most closely watched US inflation barometer and a direct input into Federal Reserve policy decisions.

The Dow Jones Industrial Average slipped between 43 and 49 points, a decline of roughly 0.1%. The S&P 500 also pulled back approximately 0.1%, while the Nasdaq Composite fell more sharply, losing about 0.3%.

The S&P 500 closed at a record 7,757.64 on Friday. Since then, upward momentum has stalled, and the index would need to close above that level to confirm a new all-time high.

Tom Essaye of Sevens Report Research described the current market environment as "a little stop light," with traders waiting for clarity on both the geopolitical landscape and the inflation outlook before making decisive bets.

Diplomatic Efforts Remain Deadlocked

Over the weekend, President Trump rejected Iran's request for compensation tied to past military conflicts, saying he would depend on economic sanctions instead. Speaking to Axios, he remarked: "We are only semi-negotiating with them."

Iranian Foreign Minister Abbas Araghchi confirmed the impasse, stating there was "no possibility of restarting negotiations" under current conditions.

Energy markets briefly rallied after Pakistan's defense minister indicated the two nations were "close to some sort of arrangement." However, crude prices remained elevated, with Brent holding near $87 per barrel and West Texas Intermediate climbing 1.3% to $83.20.

The persistent strength in oil prices is intensifying inflation concerns just one day before the CPI report, since energy costs feed directly into the index and can ripple through transportation, manufacturing, and consumer goods prices.

Inflation Data and Fed Expectations

Friday's employment report came in weaker than expected, fueling speculation that the Federal Reserve could raise rates in September rather than hold steady.

Cleveland Federal Reserve President Beth Hammack told Yahoo Finance on Monday that bringing inflation under control might require more than a single rate adjustment.

The 10-year Treasury yield slipped slightly to 4.69% during Tuesday's session. Essaye warned that a hotter-than-expected inflation print could push yields toward 5% by the end of the week, posing a significant headwind for equity valuations. A more moderate reading, by contrast, would likely reinforce the Fed's current stance and provide support for stock prices.

AI Infrastructure Earnings in Focus

Recent capital raises by Intel and Nvidia have drawn renewed attention to the enormous investment requirements behind AI infrastructure buildout.

Post-market earnings from CoreWeave, a cloud provider specializing in GPU computing for AI workloads, and Super Micro Computer, a maker of high-performance servers used in data centers, on Tuesday are expected to offer a closer look at demand trends across the AI hardware sector. Investors are paying particularly close attention to these results after an extended stretch of heavy capital expenditure by major technology companies, with hyperscalers collectively committing hundreds of billions of dollars to AI compute capacity over the past two years.

The broader market's next direction will likely hinge on Wednesday morning's inflation figures.