S&P 500 Faces Potential Plunge

JPMorgan analysts, on March 9, 2026, cautioned clients that a drawn-out war with Iran could push the S&P 500 into correction territory. Their trading desk indicated a bearish tactical view, noting that investor positioning doesn't reflect growing market risks despite increased volatility. Option pricing suggests a potential 2.9% drop for the S&P 500 this week, adding to losses from the previous week. The S&P 500's 5-day moving average is at 6728.93, signaling a buy, but the 50-day and 200-day moving averages, at 6811.58 and 6881.48 respectively, suggest a sell. Technical analysis indicates resistance around 6764-6775, with a potential path toward 6500 in the coming weeks. Support levels lie at the December low of 6720 and then at 6521-6550. Historically, geopolitical events such as the Iran war trigger initial market volatility as investors assess uncertainty. Typically, these moves fade as investors remember that most geopolitical issues have indirect impacts on domestic growth. However, the exception is when energy markets are disrupted, since energy shocks can be both recessionary and inflationary. The Strait of Hormuz, controlled by Iran, is a passageway for about one-fifth of the world's oil supply. The perceived increase in risk has led insurers to withdraw "war-risk" coverage, effectively closing the route to shipping. Attacks on refining capacity and oil wells in neighboring states pose a meaningful risk to regional energy production.