S&P 500 falls 1.7% to 6,477.16 as Iran war hopes fade and oil rises

SPX 10Y Treasury

The S&P 500 closed down 1.7% at 6,477.16 on March 26, its worst day since January, after Iran rejected a US ceasefire proposal and tightened control of the Strait of Hormuz. Brent rose 4.8% to $101.89. The Nasdaq Composite fell 2.4% into a correction more than 10% below its record, and the 10-year Treasury yield reached 4.43%.

S&P 500: down 1.7% to 6,477.16
Brent: up 4.8% to $101.89
Nasdaq Composite: down 2.4%, more than 10% below its record

SPX around the story · hourly24 h reaction ▼ 1.72%

Moves this explains

SPY−2.06%Mar 26 · Fell 2.1%, extending the prior session's 1.7% drop as hopes for an end to the Iran war faded. The decline was broad: S&P 500 −2.1%, Amazon −4.5%, Tesla −3.6%, Nvidia −3.4%, Microsoft −2.9%, gold +2.1%.BRENT+6.87%Mar 26 · Brent rose 6.87% to $107.59 on 27 March, with WTI up 8.17%. The move followed a 26 March session in which the S&P 500 fell 1.7% as Iran war hopes faded and oil rose; on 27 March all 17 covered stocks fell and the S&P 500 was down 2.10% in our data, so it was a broad risk-off day with oil higher.TSM−4.98%Mar 25 · TSM fell 4.98% as most of the covered universe sold off: META -7.17%, AMD -6.42%, ETH -5.02% and SPX -1.22% in our daily data. Market coverage tied the day to fading Iran war hopes and rising oil; a wire headline cites an intraday S&P 500 drop of 1.7%, which is larger than the close-to-close figure here.XAU−2.03%Mar 25 · Gold fell 2.03% to $4,406 in our data, while Brent rose 2.86% and crude 2.46%, and the S&P 500 fell 1.22%. Tradingeconomics reported on March 26 that gold dropped nearly 2% to about $4,460 as rising US-Iran tensions lifted oil, revived inflation worries and cut hopes for US rate cuts this year.CL+8.17%Mar 26 · WTI rose 8.17% to $100.82 on 27 Mar while the S&P 500 fell 2.1% and Brent gained 6.87%. Oil rallied as hopes for a quick US-Iran deal faded, the same driver behind the 26 Mar equity selloff. Coverage from the day put WTI near $95 after early losses, below the close here, so the size of the move is not fully confirmed.HOOD−7.30%Mar 26 · Robinhood fell 7.30% on 2026-03-27 in a broad risk-off session: the S&P 500 fell 2.10%, Brent rose 6.87% and WTI 8.17% during the Iran war, and Coinbase fell 7.37%. Reports tie the March 26 S&P 500 drop to Iran war hopes fading and oil rising.INTC−5.61%Mar 25 · Intel fell 5.61% in a broad risk-off session: Meta -7.17%, AMD -6.42%, Micron -5.41%, Ether -5.02%, TSMC -4.98%, with the S&P 500 down 1.22% in our data. A cited headline puts the S&P 500 decline at 1.7%, a different figure.

Source

Spectrum News

Mar 26, 2026

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