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Oil Prices Drop Over 10% After Iran Says Hormuz Is Completely Open
Oil prices fell more than 10% after Iran said on April 17 that the Strait of Hormuz is completely open.
U.S. crude plunged roughly 10.8% intraday to about $81 a barrel while Brent slid about 10% to near $89 to $90, depending on the report. Equity markets rallied on the news, with the S&P 500 hitting fresh highs and the Dow and Nasdaq up more than 1% in intraday trading as investors priced in eased energy risk.
The selloff was tied directly to Iran's Hormuz statement, analysts and outlets said, rather than only to earlier ceasefire hopes. Reports varied on exact moves: one AP tally showed U.S. crude at $81.28 and Brent at $89.13 intraday, while other outlets listed WTI nearer $84 and Brent near $90. Markets reacted beyond oil; the 10-year Treasury yield fell from about 4.32% to 4.24%, and European bourses jumped as investors priced in lower inflation risks. Washington moves and naval details complicated the picture: a U.S. blockade of some Iranian ports remained in force, and CENTCOM said 19 ships complied with U.S. directions to turn back. Political comments also shaped confidence, with former President Trump saying talks were "mostly complete" and that the war "should be ending pretty soon."
Early coverage linked the market rebound directly to ceasefire hopes and restored oil flows, but later reporting stressed that many price increases may persist despite cheaper fuel. Outlets such as PBS and Axios drove the early optimism, while MS NOW and economists like Mark Zandi warned that price "stickiness" — in things like airfares, delivery costs and construction materials — could keep inflation elevated even as gasoline falls. Social media reflected the divide, with market strategists celebrating resilience and others warning that a failed truce could trigger a sharp market reversal or prolonged inflationary pressures.
U.S. Stock Market
Iran War Economic Impact
U.S.–Iran War and Energy Markets
Energy Markets and Oil Prices
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This story is compiled from 7 sources using AI-assisted curation and analysis. Original reporting is attributed below. Learn about our methodology.
📌 Key Facts
- Iran’s foreign minister declared on X that the Strait of Hormuz is “completely open” to commercial vessels on a coordinated route during a 10‑day ceasefire, but the U.S. blockade of some Iranian ports and vessels remained in effect and CENTCOM said 19 ships had complied with U.S. directions to turn back.
- Oil prices plunged more than 10% intraday after the Hormuz announcements: U.S. crude/WTI fell roughly 10–11% into the low‑$80s per barrel (reported intraday values around $81–$84), and Brent dropped about 9–10% to roughly $89–$90 a barrel; U.S. average gasoline fell to about $4.08/gallon (from $4.17).
- U.S. equity markets rallied on the perceived easing of energy and geopolitical risk: the S&P 500 rose about 0.8–1.1% to a fresh record (surpassing its January peak), the Dow gained roughly 1.4–1.8% (about 678 points), and the Nasdaq climbed about 1%, extending a multi‑week winning streak.
- Markets reacted specifically to the Hormuz ‘open’ announcements — underlining how sensitive markets are to official statements about the strait even before shipping traffic is fully normalized.
- Fixed‑income moves reflected reduced inflation pressure from lower oil: the 10‑year Treasury yield fell from about 4.32% to 4.24%.
- Political developments reinforced market optimism: President Trump and regional officials suggested a ceasefire/deal was progressing (Trump said the war “should be ending pretty soon,” told Bloomberg a deal was “mostly complete” and Iran had agreed to suspend its nuclear program indefinitely), and regional officials told AP there was an “in principle agreement” to extend the ceasefire for further diplomacy.
- Analysts warned that many price increases are sticky: even if oil and gas prices drop, higher costs already passed into the economy (airfares, ride‑hailing, delivery, construction materials, possible fertilizer and food pressures) could keep inflation elevated.
- Corporate and sector moves reflected the market backdrop: some banks and financials posted strong earnings (Bank of America reported $8.6B in Q1; Morgan Stanley and other banks rose), State Street and Fifth Third outperformed, while individual stocks such as Netflix plunged (about 11.5%) despite solid profit due to weak guidance and board changes; some AI‑related stock pressures have eased as part of the rally.
📰 Source Timeline (7)
Follow how coverage of this story developed over time
April 17, 2026
6:20 PM
Oil prices plummet after Iran says Strait of Hormuz is "completely open"
New information:
- Provides exact intraday price moves: WTI down $10.33 (10.91%) to $84.36 and Brent down $8.89 (8.94%) to $90.05.
- Updates U.S. average gasoline prices to $4.08 per gallon for regular, down from $4.17 on April 9.
- Quotes Iran Foreign Minister Seyed Abbas Araghchi on X declaring the Strait of Hormuz 'completely open' to all commercial vessels on a coordinated route during the ceasefire.
- Reports that a U.S. blockade of Iranian ports and vessels remains in effect, with Trump reaffirming this on Truth Social.
- Adds CENTCOM detail that 19 ships have complied with U.S. directions to turn around and return to Iran since the blockade began earlier in the week.
- Notes same-day U.S. market reaction: S&P 500 up 1.09%, Dow up 1.84%, Nasdaq up 1.28% as of 2 p.m. ET.
- Reports Trump telling Bloomberg that a deal with Iran to end the war is 'mostly complete' and that Iran has agreed to suspend its nuclear program indefinitely, along with his openness to extending the two-week ceasefire.
5:41 PM
Inflation is likely here to stay, even if gas prices fall
New information:
- Clarifies that while Hormuz has been declared 'completely open' during a 10-day ceasefire, many price increases already baked into the U.S. economy are expected to persist.
- Introduces Mark Zandi's argument that many prices are 'sticky' and will remain permanently higher even as oil retreats.
- Details knock-on effects like higher airfares, ride-hailing and delivery costs, construction materials, and potential car-sales slowdowns.
- Highlights growing food-bank demand and possible fertilizer shortages if shipments through Hormuz lag, implying further food inflation.
2:14 PM
Oil prices plummet as Wall Street rallies to new record following Strait of Hormuz reopening
New information:
- AP piece reports U.S. crude down 10.8% to $81.28 and Brent down 10.3% to $89.13 intraday after Iran said the Strait of Hormuz is 'fully open.'
- Confirms the S&P 500 up 0.8% in early trading, with the Dow up 678 points (1.4%) and the Nasdaq up 1%, extending a three-week winning streak.
- Adds Trump quote that the war 'should be ending pretty soon,' linking political rhetoric to market optimism.
- Notes specific stock movers: State Street up 2.9%, Fifth Third Bancorp up 1.9% on earnings beats; Netflix down 11.5% despite strong profit due to guidance and Reed Hastings leaving the board.
- Reports sharp drop in the 10-year Treasury yield from 4.32% to 4.24% as lower oil eases inflation fears.
- Details that European markets leapt (CAC 40 +2%, DAX +2.2%) on Iran's announcement, while Asian markets, which closed earlier, fell.
1:50 PM
Oil prices plunge on claims Strait of Hormuz is open
New information:
- Pinpoints that the latest leg down in oil prices was triggered by the April 17 Hormuz 'open' announcements, not just general ceasefire hopes.
- Shows that equity optimism and the S&P 500 record are tied to this perceived easing of energy risk.
- Reinforces that markets are highly sensitive to official statements about the strait, even in advance of fully normalized traffic.
April 16, 2026
10:41 PM
Stock market hits new heights amid optimism about Iran war resolution
New information:
- CBS reports that U.S. stocks hit new heights on Thursday, explicitly characterized as extending the prior day’s record gains.
- The segment attributes the latest leg of the rally specifically to investor optimism that a resolution to the war with Iran could be reached quickly.
- CBS positions this as a continuation of a record‑setting move rather than an isolated up day, underscoring momentum in market sentiment tied to the conflict.
April 15, 2026
9:40 PM
Wall Street hits record as S&P 500 continues 2-week rally, boosted by hopes for Iran war's end
New information:
- Confirms the S&P 500 rose 0.8% on April 15, 2026, and set a fresh all‑time high, surpassing its prior January peak.
- Details that the index had fallen nearly 10% into a correction in late March and has since rebounded more than 10% over about two weeks.
- Attributes much of the rebound to expectations that the Iran war will not trigger a worst‑case global economic scenario and that oil flows from the Persian Gulf will normalize.
- Reports that regional officials told the Associated Press the U.S. and Iran have an ‘in principle agreement’ to extend a ceasefire to allow further diplomacy.
- Notes Brent crude settled at $94.93 a barrel on the day — well above the roughly $70 pre‑war level but down from a $119 peak — illustrating partial easing of earlier oil‑price panic.
- Provides specific bank earnings updates: Bank of America reported $8.6 billion in Q1 profit and cited a ‘resilient American economy,’ and Morgan Stanley jumped 4.5% on better‑than‑expected results.
- Describes that earlier AI‑related fears that hit certain companies and private‑credit firms have eased somewhat, with some AI‑exposed stocks recovering 2026 losses.