S&P 500, Nasdaq Surge as Investors Weigh Fed Comments and Geopolitical Developments

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By Anders Bylund – Updated Mar 31, 2026 at 2:12PM ESTKey PointsFed Chair Powell's measured tone eased fears of aggressive rate moves.Reports of potential Iran de-escalation sparked a broad rally.Despite the surge, all three indexes remain on track for their worst month in several years.If you've been avoiding your portfolio lately, Tuesday might be a nice day to take a peek. After a March that felt like it lasted approximately seven years, Wall Street decided to end the month on a high note. Whether this is the start of a real rally or just a breather before more chaos remains the trillion-dollar question. The popular indexes were way up by 1:30 p.m. ET.
The Dow Jones Industrial Average (^DJI +2.31%) had gained 2.1% after a slow start, on the heels of a 2.4% jump in the S&P 500 (^GSPC +2.64%). The more volatile Nasdaq Composite (^IXIC +3.61%) led the bullish charge with a 3.6% increase: ^DJI data by YCharts Why stocks are actually going up today Two big stories drove the optimism. First, Fed Chair Jerome Powell spoke on Monday and managed not to terrify anyone. Investors took his remarks as a sign that the Fed isn't about to do anything drastic on rates, even with inflation concerns swirling. Reports that President Trump discussed a potential end to the Iran conflict gave investors more reasons for optimism. Given that the war has basically hijacked market sentiment all month, even a hint of de-escalation was enough to spark a rally. Oil prices ticked down but are still hovering near multi-year highs, as indicated by the United States Oil Fund (USO 1.91%) rising 84% year-to-date. The energy picture remains messy, but hope is a powerful thing on Wall Street. Image source: Getty Images. The winners and losers told an interesting story. Goldman Sachs and Caterpillar led the Dow charge, both up around 5%. Microsoft and JPMorgan chipped in solid gains too, but their moves made a smaller splash due to significantly lower share prices. The Dow's price-weighted structure makes a real difference. In corporate news, Nvidia (NVDA +5.17%) announced a $2 billion investment in Marvell Technology (MRVL +13.09%) as part of an AI infrastructure partnership. Marvell shares surged more than 12% on the announcement, but the surge didn't move the needle on the major market indexes. Marvell is not a Dow component, and its $83 billion market cap makes it a minnow on the cap-weighted Nasdaq and S&P 500 lists, where leaders such as Nvidia come with trillion-dollar footprints. ExpandDJINDICES: ^DJIDow Jones Industrial AverageToday's Change(2.31%) $1045.06Current Price$46261.20Key Data PointsDay's Range$45480.30 - $46318.2452wk Range$36611.78 - $50512.79Volume363M The bigger picture Let's keep this in perspective. The S&P 500 and Dow are still heading for their worst month since September 2022. The Nasdaq is wrapping up its weakest month in a year. The Nasdaq is technically in correction territory even after Tuesday's jump, and the other indexes are not far away. Both posted drawdowns of 9% or more last night, so they're teetering on the 10% threshold that defines a market correction. For long-term investors, today's rally underscores that markets can move sharply in either direction on news developments. Those with investment horizons measured in years rather than weeks may view the current volatility as an opportunity to add to quality positions at lower valuations. Stick to your plan, stay diversified, and maybe resist the urge to refresh your brokerage app every five minutes. Your nerves will thank you.Read NextMar 30, 2026 •By Jeremy BowmanThe Dow And Nasdaq Have Fallen Into Correction Territory.
But Investor Sentiment Has Looked This Gloomy Before -- and Markets RecoveredMar 27, 2026 •By Emma NewberyStock Market Today, March 27: Crude Surges Above $110, Driving Broad Sell-OffMar 26, 2026 •By Emma NewberyStock Market Today, March 26: Nasdaq Falls 2.4% After Meta and Micron Drop Sharply Mar 24, 2026 •By Emma NewberyStock Market Today, March 24: Oil, AI, and Private Credit Fears Weigh on MarketsMar 24, 2026 •By Anders BylundWhy the Dow, S&P 500, and Nasdaq Can't Pick a Direction TodayMar 19, 2026 •By Anders BylundOil Spike Sends Indexes Lower, but the Selloff Stays ShallowAbout the AuthorAnders Bylund is a contributing Motley Fool media and technology analyst covering semiconductors, cloud computing, internet infrastructure, quantum computing, and streaming media. Previously, Anders was a systems administrator for Nielsen Technology and CSX, gaining hands-on experience with enterprise-class systems. He was also a freelance writer for Ars Technica, TIME, USA Today, CNN, WIRED, and AOL's Daily Finance. He holds a bachelor’s degree in English and a master’s degree in library and information sciences from Florida State University. He believes in coyotes and time as an abstract.TMFZahrimX@TMFZahrimStocks MentionedDow Jones Industrial AverageDJINDICES: ^DJI$46,259.54(+2.31%)+$1,043.40S&P 500 IndexSNPINDEX: ^GSPC$6,510.94(+2.64%)+$167.22NASDAQ Composite IndexNASDAQINDEX: ^IXIC$21,542.21(+3.60%)+$747.57Marvell TechnologyNASDAQ: MRVL$98.71(+12.41%)+$10.90NvidiaNASDAQ: NVDA$173.64(+5.13%)+$8.47MicrosoftNASDAQ: MSFT$370.47(+3.21%)+$11.51JPMorgan ChaseNYSE: JPM$294.84(+3.90%)+$11.07Goldman Sachs GroupNYSE: GS$846.33(+4.80%)+$38.73CaterpillarNYSE: CAT$706.23(+5.81%)+$38.80United States Oil FundNYSEMKT: USO$126.67(-2.43%)-$3.16*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.
