A two-week ceasefire agreement between the United States and Iran, announced late Tuesday by US President Donald Trump, has triggered a powerful relief rally across global financial markets and a sharp drop in oil prices [1][2][3][4][5][6][7][8][9][10][11]. Trump stated he would suspend attacks on Iran for two weeks, conditional on Iran reopening the Strait of Hormuz, a critical passage for nearly 20% of global oil supply [1][2][5][9][11]. Iran confirmed it would coordinate vessel passage through the strait and delivered a 10-point proposal for broader negotiations, with talks set to begin in Islamabad on Friday [1][2][5][8][9][11].
The immediate market reaction was dramatic. Oil prices collapsed, with Brent crude falling as low as $92 per barrel and WTI dropping over 11% below $90, erasing much of the war-driven surge since late February [2][3][5][9][11]. The US Dollar Index (DXY) tumbled by 0.55–0.75% to near 98.75–99.00, as safe-haven demand evaporated and traders priced out further Federal Reserve rate hikes for 2026 [2][4][5][6][7][8]. Major currencies rallied against the dollar: EUR/USD neared 1.1700, GBP/USD reclaimed two-week highs above 1.3445, AUD/USD hit its highest since March 20, and USD/CHF slumped below 0.7900 [1][4][5][6][7][8].
Equity markets soared globally. US stock futures surged, with Dow futures up over 1,000 points, S&P 500 futures gaining more than 2.7%, and Asian and European equities rallying strongly [4][5][10][11]. Asian semiconductor and technology stocks led the gains, as the ceasefire eased helium supply fears critical for chip manufacturing. Notable moves included TSMC (+4.84%), SMIC (+10%+), Tokyo Electron (+9.6%), Advantest (+13%+), Renesas (+12%), Fujikura (+11.58%), SK Hynix (+15%+), and Samsung Electronics (+9%+) [10]. Samsung's rally was also supported by its forecast of an eightfold jump in Q1 profit, driven by AI chip demand [10].
The reopening of the Strait of Hormuz is expected to ease inflation pressures globally, as lower oil prices reduce input costs and prompt traders to scale back expectations for central bank rate hikes [2][3][5][6][9]. However, analysts and central bankers caution that the ceasefire remains fragile. Danske Bank and Commerzbank note that sustained lower oil prices depend on a durable resumption of oil and gas flows through Hormuz, and that the deal's stability is uncertain, especially as Iran may charge transit fees [3][6]. The Reserve Bank of India and Reserve Bank of Australia both highlighted ongoing risks to inflation and growth from potential renewed disruptions [1][2].
Despite the ceasefire, reports indicate continued missile and drone activity across the Middle East, with Israel, UAE, Saudi Arabia, Kuwait, Bahrain, and Qatar all issuing alerts or activating defenses [11]. Israel's Prime Minister clarified that the truce does not apply to Lebanon [5][11]. Negotiations between the US and Iran are scheduled to begin Friday in Islamabad, with the outcome likely to influence further market direction [1][2][5][8][9][11].
Forward-looking statements from analysts emphasize that while the market reaction is overwhelmingly positive, the situation remains volatile and subject to reversal if hostilities resume or the ceasefire collapses [3][6][7][11]. The release of the FOMC Minutes later Wednesday is expected to have limited impact, as recent Fed policy was shaped by the war's inflationary effects [1][4][5][8].
CONCLUSION
The US-Iran ceasefire and reopening of the Strait of Hormuz have sparked a global relief rally, sending equities and risk assets sharply higher while oil prices and the US dollar plunged. However, the ceasefire's fragility and ongoing regional tensions mean markets remain sensitive to further developments. Sustained market optimism will depend on the durability of the truce and successful negotiations in the coming days.