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Dow Futures Sink Over 450 Points, Oil Reaches $90 Again; Trump Says Marines Took Custody Of Iranian Ship, Tehran Rejects Negotiations

Elena Rossi — Crypto & Macro Correspondent
By Elena Rossi · Crypto & Macro Correspondent
· 2 min read

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Dow Futures Sink Over 450 Points, Oil Reaches $90 Again; Trump Says Marines Took Custody Of Iranian Ship, Tehran Rejects Negotiations

Ananya Gairola Mon, April 20, 2026 at 11:31 PM EDT 2 min read ** CL=F DX-Y.NYB NG=F ^GSPC ^NDX Late Sunday, U.S. stock futures fell sharply while oil prices surged as tensions between the U.S. and Iran escalated following a naval confrontation in the Gulf of Oman.

Stock Futures Slide As Geopolitical Risks Mount**

Dow futures fell 455.00 points, or 0.92%, to 49,186.00, while S&P 500 futures dropped 51.50 points, or 0.72%, to 7,110.00 and Nasdaq 100 futures declined 181.25 points, or 0.68% as of 8:40 p.m. EDT.

In commodities, WTI crude oil (May) rose 7.55% to $90.18 per barrel, while the June contract gained 6.90% to $88.29 per barrel.

Brent crude advanced 6.22% to $96.00 per barrel. RBOB gasoline futures climbed 4.13% to $3.1288 per gallon. Natural gas futures rose 1.72% to $2.72 per MMBtu.

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Meanwhile, the U.S. dollar index stood at 98.274, up 0.05%.

Asian markets were higher, with Japan’s** Nikkei 225** rising 0.63% to 58,843.64, while South Korea’s** KOSPI** gained 0.57% to 6,227.01.

US-Iran Tensions Escalate After Naval Clash

Taking to Truth Social, President** Donald Trump** said U.S. forces fired on an Iranian container ship in the Gulf of Oman after it attempted to breach a U.S. naval blockade.

"Right now, U.S. Marines have custody of the vessel. The TOUSKA is under U.S. Treasury Sanctions because of their prior history of illegal activity," Trump wrote.

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The move followed an Iranian attack on a tanker in the Strait of Hormuz a day earlier.

Trump warned of further escalation, saying Iran's actions were a "total violation" of the ceasefire and threatening strikes on key infrastructure if a deal is not reached.

Iran Rejects Talks As Ceasefire Deadline Nears

While Trump said negotiations were expected in Islamabad on Monday, Iran pushed back, signaling it would not participate amid the ongoing blockade, according to state news agency IRNA.

**The reports circulating about a second round of negotiations in Islamabad are false.

— IRNA News Agency ☫ (@IrnaEnglish) April 19, 2026

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