Oil prices plunge, stocks surge on US-Iran ceasefire

The most widely traded oil contracts fell some 15 percent to around $95 a barrel, after a month of conflict that killed thousands and hammered the global economy.

Stock markets soared, with Wall Street's three main indexes more than two percent higher in late morning trading.

Europe's main continental bourses all closed up more than three percent. Frankfurt led the way with a five-percent gain. London gained 2.5 percent, held back by weak oil companies.

Earlier, Tokyo's stock market closed up 5.4 percent and Chinese indices jumped around three percent.

The dollar, a safe haven in times of market turmoil, slid against the euro, yen and British pound as investors returned to riskier assets.

But traders warned that the euphoria could be short-lived. Both sides have threatened to resume hostilities if the two-week pause does not lead to an agreement.

"In reality, the markets are not pricing in peace but a window for negotiation," said John Plassard of Cite Gestion.

"And that is precisely the issue: in two weeks, either this window will lead to a lasting agreement, or it will only postpone and amplify the energy shock that everyone fears." 

Oil prices remain much higher and equity prices lower than before the United States and Israel attacked Iran on February 28.

"I don't think we're going to (quickly) go back to the levels we were at before the war," said Kathleen Brooks, research director at XTB traders. "Energy infrastructure across the Gulf has been targeted."

Maritime monitor Marine Traffic noted that two ships had passed through the waterway since Iran agreed to reopen it, through which much of the world's oil, gas and fertiliser passes.

But one major German shipping company, Hapag-Lloyd, said it was too early for its trapped ships to set sail out of the Gulf.

Shipping journal Lloyd's List estimated that around 800 ships have been stuck in the Gulf since the end of February.

The International Air Transport Association said that it would take months for jet fuel supplies and prices to normalise.

"Should talks falter or activity through the strait remain subdued, oil prices and the dollar could reverse course fairly quickly," said Matthew Ryan, head of market strategy at global financial services firm Ebury. 

The strongest gains on equity markets came from mining groups, banks and airlines.

Delta Airlines was up more than 6 percent after reporting better-than-expected earnings and saying that demand for flying was holding up.

Energy majors slumped, however, having made huge gains over the past few weeks.

Shell fell almost six percent in London even as it said first-quarter earnings were set for a "significant" boost from higher oil prices. BP also fell almost six percent and TotalEnergies more than three percent. 

- Key figures at around 1540 GMT -

Brent North Sea Crude: DOWN 13.0 percent at $95.05 a barrel

West Texas Intermediate: DOWN 15.2 percent at $95.65 a barrel

New York - Dow: UP 2.3 percent at 47,649.73 points

New York - S&P 500: UP 2.1 percent at 6,755.68 

New York - Nasdaq Composite: UP 2.5 percent at 22,576.95 

London - FTSE 100: UP 2.5 percent at 10,608.88 (close)

Paris - CAC 40: UP 4.5 percent at 8,263.87 (close)

Frankfurt - DAX: UP 5.1 percent at 24,080.63 (close)

Tokyo - Nikkei 225: UP 5.4 percent at 56,308.42 (close)

Hong Kong - Hang Seng Index: UP 3.1 percent at 25,893.02 (close)

Shanghai - Composite: UP 2.7 percent at 3,995.00 (close)

Euro/dollar: UP at $1.1692 from Tuesday's $1.1585

Pound/dollar: UP at $1.3440 from $1.3274

Dollar/yen: DOWN at 158.38 yen from 159.70 yen

Euro/pound: DOWN at 86.98 pence from 87.28 pence

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