U.S. stock futures flat amid Iran, rate caution; Broadcom dips after earnings

U.S. stock index futures remained relatively unchanged on Wednesday evening, as concerns surrounding tensions with Iran and the possibility of rising interest rates kept market participants on the sidelines. Broadcom Inc experienced a notable decline in after-hours trading, following a soft outlook for the current quarter which overshadowed stronger-than-expected results from the fiscal third quarter.

The S&P 500 Futures, Nasdaq 100 Futures, and Dow Jones Futures all ended the day flat. After a positive session on Wall Street, which helped recover from a sluggish start to September, gains were limited due to the market's cautious approach ahead of key labor market data expected on Friday. Broadcom experienced a 3% dip in aftermarket trade after its fiscal fourth-quarter revenue guidance fell short of market expectations.

Despite its fiscal third-quarter earnings exceeding Wall Street estimates, the stock partially recouped its losses following the company's revised artificial intelligence chip revenue forecasts. The company anticipates AI chip revenue to double to around $230 billion by fiscal 2028. However, Broadcom's stock performance in 2026 has been relatively subdued, with only a 6% increase, trailing its peers and the broader SOX, which has risen by 54% this year.

Increasing competition from rivals like Marvell Technology Inc has put pressure on Broadcom's shares. Meanwhile, Hewlett Packard Enterprise Co saw a decline of over 5% after the company expressed potential margin weakness and supply chain bottlenecks. Wall Street stocks rose on Wednesday, partly due to a cooling of Treasury yields after reaching recent highs, as well as a temporary decline in oil prices.

The S&P 500 increased by 0.46%, the Dow Jones Industrial Average gained 0.56%, and the NASDAQ Composite climbed 0.45%. However, Wall Street continued to grapple with a challenging start to September, particularly due to recent escalations in U.S.-Iran military tensions near the Strait of Hormuz, which led to a surge in oil prices.

This, coupled with persistent concerns over inflation and the prospect of higher interest rates, further dampened market sentiment. The focus of the week was on the upcoming nonfarm payrolls data for August, set to be released on Friday, providing additional insights into the labor market and potential interest rate decisions.