05:11 PM EDT, 05/28/2026 (MT Newswires) -- US equity indexes rose as a deal to end the war against Iran was said to be awaiting President Donald Trump's signature and as the Federal Reserve's preferred inflation gauge unexpectedly eased in April.

The Nasdaq Composite climbed 0.9% to 26,917.47, the S&P 500 advanced 0.6% to 7,563.63, and the Dow Jones Industrial Average edged up by less than 0.1% to 50,668.97 at the close on Thursday.

A tentative agreement has been reached between the US and Iran to open the Strait of Hormuz and start nuclear talks, according to US officials, CNN reported, adding that Trump has not signed off on it yet. Negotiators for the US and Iran agreed on a 60-day memorandum of understanding to extend the ceasefire, Axios reported, citing two US officials.

Meanwhile, US Central Command confirmed that Iran fired a ballistic missile toward Kuwait overnight, which was intercepted, CNN reported. Iran's Islamic Revolutionary Guard Corps earlier said it launched an attack targeting an American air base, claiming it was the source of US strikes, according to the news report.

Brent crude futures slipped 0.4% to $93.94. West Texas Intermediate crude oil futures rose 0.5% to $89.15.

In precious metals, gold futures jumped 1% to $4,528.2, and silver futures climbed 1.3% to $75.90.

The personal consumption expenditures, or PCE, price index slowed to 0.4% month-over-month from 0.7% in March, Bureau of Economic Analysis data showed. The Street expected 0.5% in a Bloomberg-compiled poll. The core PCE price index, which excludes the more volatile food and energy and is the Fed's preferred inflation gauge, grew by 0.2% versus March's 0.3%, also the consensus for April.

Annually, the PCE index jumped 3.8% in April, the largest increase since May 2023, up from 3.5% in March but in line with market expectations. Core PCE climbed to 3.3%, as expected, from 3.2% in March.

Most US Treasury yields fell, with the 10-year down 2.8 basis points to 4.45%. The two-year declined one basis point to 4.02%.

US economic growth, as measured by gross domestic product, rose by 1.6% in Q1, revised lower from a 2.0% increase in the advance estimate. No revision was expected in a survey compiled by Bloomberg. GDP rose by 0.5% in Q4.

New orders for US durable goods rose by 7.9% in April following a 1.3% increase in March, beating the 4.0% gain forecast in a survey compiled by Bloomberg. Excluding a 21.5% surge in transportation orders, new orders would have been up 1.1% in April after a 1.1% increase in March. Expectations were for a 0.5% gain.

In company news, Dollar Tree ( DLTR ) shares soared 18%, the biggest gainer on the S&P 500, after the company posted higher fiscal Q1 adjusted earnings and revenue, and raised its fiscal 2026 adjusted EPS guidance.

The worst performer on the S&P 500 and the Nasdaq was Synopsys ( SNPS ) , down 8.6%, after the company reported a decline in fiscal Q2 non-GAAP earnings.