S&P 500 Index futures slipped 0.5% before Monday’s open as investors braced for President Trump’s Tuesday deadline demanding Iran negotiate a nuclear deal. The broader market uncertainty rippled through premarket trading, with Broadcom, CVS Health, Estée Lauder, and Wingstop emerging as key focus areas amid mixed sector performance.

Trump’s ultimatum has intensified geopolitical risk, casting a shadow over global markets. Analysts suggest a delayed deal could trigger oil price volatility, given Iran’s role as a major oil exporter. The S&P 500’s decline reflects cautious sentiment, with sectors like technology and consumer staples showing resilience. Broadcom, a semiconductor giant, drew attention for potential acquisition talks, while CVS Health and Estée Lauder highlighted divergent sector strengths in healthcare and luxury retail.

Wingstop’s inclusion in premarket discussions underscored investor interest in fast-casual dining amid shifting consumer trends. However, the absence of concrete details on deal progress left traders relying on speculative positioning. Market volatility indices spiked, signaling heightened uncertainty ahead of the pivotal Tuesday deadline.

With Trump’s stance framing the narrative, all eyes remain on Iran’s response. A failure to reach terms could trigger broader economic repercussions, from energy markets to defense contracts. For now, the S&P 500’s muted start signals a market in wait-and-see mode, balancing geopolitical risks against corporate earnings season.