The S&P 500 slid 0.9% on Tuesday, while the Dow Jones Industrial Average dropped 0.4% and the Nasdaq Composite fell 1.4%, as rising bond yields and weakness in chip stocks pressured equities. The decline marked the third straight losing session for major indexes, signaling a shift in momentum after last week’s record highs. What triggered the selloff? The bond market delivered the first shock. The 30-year Treasury yield surged above 5.18%, reaching its highest level in nearly 19 years. That sharp move raised concerns about borrowing costs across the economy. Higher rates tend to weigh on consumer spending, and they often hit high-growth sectors like technology the hardest. Rising Yields Shake Market Confidence Why do yields matter so much right now? The answer lies in valuation pressure. When yields rise, future earnings become less attractive, especially for companies trading at premium multiples. That dynamic has placed technology stocks under renewed scrutiny. Investors also reacted to recent inflation data, which showed price pressures picking up again. Oil prices had surged in previous sessions due to the Middle East conflict, feeding into broader inflation concerns. As a result, expectations for Federal Reserve policy have shifted. Market watchers now debate whether the central bank will act more aggressively. Some analysts argue that the Fed may need to raise rates sooner than expected. That possibility has added another layer of uncertainty for equities already dealing with elevated valuations. Chip Stocks Lead The Pullback The semiconductor sector stood at the center of Tuesday’s decline. The Philadelphia Semiconductor Index fell 1.4% and has dropped more than 7% over the past three sessions. This pullback follows a powerful rally driven by artificial intelligence demand. So, is this just profit-taking? In part, yes. Investors have started locking in gains after a sharp run higher. At the same time, concerns about the sustainability of data center spending have emerged, raising questions about how long the AI-driven boom can continue. Key names in the sector moved lower ahead of a major catalyst. Nvidia shares slipped again, marking a third consecutive decline as traders positioned ahead of its earnings report. Qualcomm dropped more than 3%, while Broadcom also edged lower, reflecting broader weakness across chipmakers. Oil And Geopolitics Add Complexity Markets also tracked developments in the Middle East. Oil prices eased slightly after President Donald Trump announced he would pause a planned military strike on Iran. The decision followed appeals from Gulf allies, who indicated that negotiations could be close to progress. Does that signal a lasting de-escalation? Not yet. While the pause reduced immediate tensions, uncertainty remains around the Strait of Hormuz, a key route for global energy shipments. Ongoing restrictions and unresolved disputes continue to cloud the outlook. Iran has not confirmed any breakthrough in talks, and recent drone incidents in the region highlight how fragile the situation remains. These geopolitical risks continue to influence both oil markets and broader investor sentiment. Markets Enter A Critical Phase After a strong rally that pushed indexes to record levels, markets now face a more complex environment. Rising yields, inflation concerns, and geopolitical uncertainty have combined to challenge bullish momentum. At the same time, upcoming earnings, particularly from major technology companies, could shape the next move. Investors will look for confirmation that growth can justify current valuations despite macro pressures. Stocks appear to be in a cooling phase. Whether this turns into a deeper correction or stabilizes quickly will depend on how these competing forces evolve in the coming sessions.