Stock futures rise as Iran war optimism lifts markets; oil, yields slip

Lead

U.S. stock futures opened higher on March 31, 2026, as growing optimism that the U.S.-Iran war could be winding down lifted risk appetite across global markets. Futures tied to the S&P 500 climbed about 0.8%, Nasdaq 100 futures gained roughly 1%, and Dow futures added about 371 points (around 0.8%). At the same time, oil prices eased and Treasury yields fell ahead of a planned presidential address later Wednesday.

Key Takeaways

• S&P 500 futures rose approximately 0.8%, Nasdaq 100 futures gained about 1%, and Dow futures were up ~371 points (0.8%) on March 31, 2026.
• West Texas Intermediate (WTI) futures declined about 2% to trade just above $99 per barrel; Brent slipped nearly 2% to just above $102 per barrel.
• The 10-year U.S. Treasury yield fell to about 4.28%, while the 2-year yield dropped to roughly 3.766%.
• Markets reacted to comments from President Donald Trump saying U.S. forces would leave Iran in “two or three weeks;” a presidential address was scheduled for 9 p.m. ET Wednesday.
• An unconfirmed report suggested Iranian President Masoud Pezeshkian signaled openness to ending the conflict with international guarantees; that report remains unverified.
• Bitcoin rose 2% on the day and closed March at $67,802.36, up 1.43% for the month but down 22.36% for Q1 2026.
• Asia and European equities also rallied: South Korea’s Kospi jumped to 5,478.7, Japan’s Nikkei 225 climbed above 53,700, and the Stoxx 600 opened about 2% higher in Europe.
• Energy was the only GICS sector to finish March higher, up 10.3% month-to-date and up 37.2% for the quarter.

Background

The market moves follow a volatile March that reflected both geopolitical shocks and persistent inflation concerns. The U.S.-Iran conflict has disrupted energy flows and investor sentiment since hostilities intensified earlier in the quarter, contributing to sharp swings in oil prices and risk assets.

Political developments accelerated market reactions this week. On March 31, President Donald Trump told reporters he expects U.S. military forces will depart Iran in “two or three weeks,” and the White House scheduled a 9 p.m. ET address to update the public. Separately, media outlets circulated an unconfirmed report that Iranian President Masoud Pezeshkian was open to ending the war under specific guarantees — a claim that markets appear to have priced in cautiously.

Traders and institutional investors have also been balancing typical quarter-end portfolio adjustments against real-time macro signals. Energy outperformance for March and Q1 reflected supply concerns earlier in the quarter; at the same time, elevated oil still leaves some participants skeptical about a durable risk-on trend.

Main Event

On Tuesday’s close and into Wednesday morning, optimism about a potential de-escalation in Iran set the tone. U.S. equity futures strengthened while oil prices pulled back after President Trump’s comments and the unconfirmed Iranian report. WTI futures fell about 2% to trade slightly above $99 per barrel, and Brent eased nearly 2% to a touch over $102.

Fixed-income markets moved in step with stocks: benchmark Treasury yields slid as investors added duration, anticipating that disinflationary impulse from softer energy prices and lower near-term geopolitical risk could keep inflation contained. The 10-year yield reached roughly 4.28%, and the 2-year yield fell to about 3.766%.

Cryptocurrencies also reacted to the risk-on session. Bitcoin gained around 2% Tuesday and closed March at $67,802.36, registering its first positive month in six but still leaving it down 22.36% for the quarter. Ether rose over 3% to end the month at $2,095.73, up 6.7% for March but down 29.3% for Q1.

Regional equities mirrored the U.S. rebound. In Asia, South Korea’s Kospi closed at 5,478.7 after an outsized gain, Japan’s Nikkei 225 advanced above 53,700 led by financials, and other major indexes in Hong Kong, mainland China and Australia finished higher. European stocks opened the new trading month broadly higher, with the Stoxx 600 up about 2% shortly after the bell.

Analysis & Implications

Markets appear to be front-running political signals that could lead to a de-escalation in the Middle East. If a diplomatic or negotiated pause reduces the risk premium on oil, inflation expectations could moderate and give central banks more room to judge policy, which supports both equities and long-duration bonds.

However, the move is fragile. Oil remains elevated compared with pre-conflict levels; Brent earlier in the week recorded a March high that reflected sustained supply fears. Elevated energy prices can keep headline inflation sticky and complicate the Federal Reserve’s outlook, so a drop of a few percentage points in oil will not automatically translate into lower core inflation.

Investor positioning also matters. Quarter-end rebalancing and window-dressing can amplify intraday rallies without signaling persistent trend change. Several market participants noted that some gains may reflect mechanical flows and earnings-season positioning rather than a fully priced strategic shift.

Geopolitically, even firm statements about troop timelines do not guarantee a stable ceasefire or rapid normalization of energy markets. Any durable decline in risk premia will likely require verifiable steps — withdrawals, formal agreements, or credible international guarantees — rather than tentative statements alone.

Comparison & Data

The table shows the immediate market reaction the day geopolitical hopes improved. While equities and long-duration bonds rallied, oil remained well above historical averages, underscoring how much of the inflation outlook still depends on energy dynamics.

Reactions & Quotes

Market participants gave mixed takes on whether the strength will persist.

“We will be leaving [Iran] very soon — two or three weeks,”

President Donald Trump (reported comments to the press)

This comment triggered intraday risk-on positioning and was cited widely by traders as the proximate driver for the rally in futures and the pullback in oil.

“Oil is still telling the truth of the situation — I’m not convinced the rally has durable follow-through,”

Karen Finerman, Co‑founder & CEO, Metropolitan Capital Advisors

Finerman cautioned that elevated oil and quarter-end technical flows could limit the persistence of the equity advance.

“Investors are pricing in a lower near-term risk premium, but events remain fluid and confirmations are needed,”

Senior rates strategist (institutional desk)

Institutional strategists said they were adding duration while watching incoming data and political signals ahead of the presidential address.

Unconfirmed

• The report that Iranian President Masoud Pezeshkian formally agreed to end the war in exchange for guarantees was circulated but remains unverified by primary Iranian or international officials.
• Timelines for a full U.S. military withdrawal from Iran are subject to official confirmation; President Trump’s remarks reflect his stated expectation but do not constitute a formal, finalized timeline or withdrawal plan.

Bottom Line

Markets rallied on hopes that the U.S.-Iran war could be nearing an end, pushing equity futures higher, nudging oil lower and lowering Treasury yields as investors priced reduced near-term geopolitical risk. The moves reflect a rapid re-pricing of risk premia rather than confirmed policy outcomes.

That said, caution is warranted: oil remains elevated, quarter-end flows may have amplified the rally, and several key reports remain unconfirmed. Traders and policymakers will look for concrete steps — verified diplomatic agreements, formal withdrawal orders, and incoming economic data — before treating this episode as a durable turning point.

Sources

• CNBC — Live market updates (news outlet)
• The White House (official statements and schedule)
• Coin Metrics (crypto market data)
• Reuters (news reporting on regional trade and market reaction)
• LSEG / LSEG data (analyst estimates and market data)