Wall Street advances as investors bet on Mideast de-escalation.

Wall Street’s main indexes closed higher on ⁠Wednesday ⁠as oil prices fell while Iran reviewed a U.S. ⁠proposal to end the war in the Middle East, feeding investor hopes for de-escalation in the fourth week of ​a war that has disrupted global energy flows and stoked inflation concerns.

While Abbas Araqchi, Iran’s foreign minister, said that authorities were reviewing the U.S. proposals, he added that Tehran has ‌no intention to hold talks with Washington.

Initially, Iran ‌said it considered U.S. proposals delivered by Pakistan as excessive and demanded sovereignty over the Strait of Hormuz. 

The mixed messages led to choppy trading. Michael James, equity sales ⁠trader at Rosenblatt Securities, ⁠said: “There are a lot of frayed nerves out there with sentiment and headlines driving a lot of ​the market action.”

Any signs of communication between the countries provided some hope for investors, however, following signals that Washington has been seeking a ceasefire and restoration of shipping through the crucial Strait of Hormuz, which about 20% of global oil shipments pass through. 

“There is optimism that the proposal and counter-proposal are setting the stage for more negotiations,” said Gene Goldman, chief investment ​officer at Cetera Investment Management. 

But until there is clarity on when the war might end, Goldman said he expects “volatility to remain elevated given the impact ⁠of ⁠higher oil prices on inflation.”

The Dow ⁠Jones Industrial Average rose 305.43 points, or ​0.66%, to 46,429.49, the S&P 500 gained 35.53 points, or 0.54%, to 6,591.90 and the Nasdaq Composite gained 167.93 points, or 0.77%, to 21,929.83. 

During Wednesday’s ​session, energy was the weakest of the S&P ⁠500’s 11 major industry sectors, falling 0.5%. The strongest sector gainers were materials, up 2%, and consumer discretionary, which added 1.2%. 

With oil prices settling down more than 2%, shares in companies that depend heavily on fuel were rallying. Cruise operator Norwegian Cruise Line closed up 2.8% while the S&P Composite 1500 Passenger Airlines index rose 1%. 

The small-cap Russell 2000 index finished up 1.2% after hitting a two-week high during the trading session.

U.S.-listed shares of Arm rallied 16.4% after the company unveiled a new AI data center chip ⁠that is expected to bring billions of dollars in revenue. It was the biggest gainer in the Philadelphia Semiconductor Index, which ⁠closed up 1.2%.

Other rallying chipmakers included Advanced Micro Devices and Intel, which both finished up more than 7%. Nvidia shares added 2%.

Destiny Tech100 surged 15% after a report that SpaceX aims to file its IPO prospectus as soon as this week. SpaceX is the fund’s largest equity holding.

Other space companies rallied in response with Rocket Lab adding 10.3% while Intuitive Machines rose 14.7% and EchoStar added 7.4%.

The oil price spike has revived inflation worries, complicating the interest-rate outlook of central banks. Markets are no longer pricing in any easing from the Federal Reserve this year, according to CME Group’s FedWatch Tool, compared with the two cuts that were expected before the war broke out.

Among other movers, U.S.-listed shares of JD.com rose 8% and Alibaba rose 3.5% after Chinese state media and the regulator urged the food-delivery platform industry to end a price war. Robinhood Markets rallied 5% after the ⁠trading platform announced a new $1.5 billion share buyback program.

On U.S. exchanges 17.07 billion shares changed hands compared with the 20.69 billion-share moving average for the last 20 sessions.