Equity markets have largely shrugged off the initial economic impact of the conflict involving Iran, with the S&P 500 up 1.3% since February 27, the day prior to the outbreak of hostilities. That advance has effectively erased the market effects tied to the confrontation, leaving the index within roughly 11 points of a fresh all-time high, according to Yardeni Research.
In a note cited by market observers, Yardeni described the recent price action as "yet another V-shaped buy-the-dip rebound" and called it "another buying opportunity arising from a geopolitical crisis." The firm highlighted that, since the March 30 low, the market-weighted S&P 500 has climbed 9.8% while the MAGS ETF, which tracks the largest technology stocks, has gained 14.8% over the same span.
Political signals appear to have contributed to investor optimism. In a Fox Business interview, U.S. President Donald Trump said the conflict was "very close" to ending and added, "I think they want to make a deal very badly." At the same time, reports indicate that peace talks with Iranian negotiators are expected to resume on Thursday after weekend discussions in Pakistan failed to produce a breakthrough. Vice President JD Vance characterized the discussions as making "a lot of progress" while noting that "the ball is very much in their court."
That diplomatic momentum was complicated by a reported new escalation. On Monday, the President is said to have implemented a naval blockade of all Iranian ports, a move that represents a fresh step up in pressure even as ceasefire negotiations proceed.
On the inflation front, Yardeni highlighted March producer price index data showing headline PPI at 4.0% year-on-year, the highest reading in more than three years. That rise was led by an 11.2% surge in energy prices. Yardeni also noted that, despite the energy-driven headline jump, the shock has not yet transmitted to core inflation measures; services inflation remained flat year-on-year in the latest data.
Taken together, markets are pricing a normalization in the geopolitical picture while data points leave open the possibility that energy-driven inflation could become a broader concern if it filters through to core prices. For now, however, investors have bid up large-cap stocks, particularly those concentrated in the MAGS ETF, contributing to the index's rapid recovery from the late-March low.
Bottom line: Equities have recovered lost ground since the conflict began, but diplomatic developments and a reported naval blockade maintain significant uncertainty. Inflation data shows an energy-led headline move that has yet to broaden across core services prices.