US stock futures traded cautiously on Tuesday as investors weighed renewed tensions between Washington and Tehran against the prospect of a key inflation reading later in the day.
The focus has shifted quickly from artificial intelligence-driven optimism to a more fragile mix of geopolitics, inflation and interest-rate risk.
April’s consumer price index report is now the main event, with traders looking for clues on whether the Middle East conflict is starting to feed into US price pressures and alter the Federal Reserve’s policy path.
5 things to know before market opens
1. Futures are pointing to a cautious start
S&P 500 futures are down 0.38%, Nasdaq 100 futures falling 0.73%, and Dow futures slipping 55 points (0.11%).
The moves suggested investors were reluctant to add risk before both the inflation data and any further headlines from the Middle East.
The pullback was modest rather than panicked, but it marked a shift in tone after Monday’s stronger close.
2.US-Iran tensions are back at the centre of the market
Renewed strain between Washington and Tehran has revived a risk-off undercurrent across global markets.
Reports that President Donald Trump is growing increasingly frustrated with stalled ceasefire negotiations have raised concern that the White House may be more open to a return to military action if talks remain deadlocked.
That matters for markets because the Middle East conflict has implications far beyond foreign policy.
Any escalation could disrupt energy supply expectations, lift oil prices and feed directly into inflation concerns, all of which would complicate the outlook for US equities and monetary policy.
3. Iran’s warning is adding to nerves
Iranian Parliament Speaker Mohammad Bagher Ghalibaf said the country’s military was fully prepared to retaliate against any future strikes, putting additional pressure on what had already become a fragile ceasefire.
That warning reinforced the sense that the situation remains unstable and vulnerable to sudden deterioration.
Investors are particularly sensitive to language suggesting retaliation or broader regional involvement.
4. CPI is the key macro event of the day
The April consumer price index report due later Tuesday is likely to be the main near-term catalyst for markets.
Investors want to know whether recent geopolitical stress and higher energy costs are beginning to influence headline inflation, and whether underlying price pressures remain sticky enough to keep the Fed cautious.
A stronger-than-expected inflation reading would probably reinforce the view that US rates may need to stay higher for longer, which could pressure equities, especially growth stocks.
A softer number, by contrast, may help stabilise sentiment by easing some of the concern that the conflict is feeding into broader domestic inflation.
5. Chipmakers are still supporting the broader market
Despite Tuesday’s weaker tone in futures, semiconductor and AI-linked stocks remain an important source of support for Wall Street after Monday’s record-high close.
The Dow, S&P 500 and Nasdaq 100 all ended higher in the previous session, rising 0.19%, 0.19% and 0.1% respectively, helped by continuing optimism around artificial intelligence demand.
That leadership matters because it has helped keep the broader market resilient even as macro risks have increased.
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