* US stocks mixed; Nasdaq lower

* AMD and SpaceX fall after results

* Spot gold up sharply

(Updates to US midday)

By Caroline Valetkevitch and Nell Mackenzie

NEW YORK/LONDON, Aug 5 (Reuters) - Major stock indexes were

mixed near flat on Wednesday, with declines in shares of SpaceX

weighing on the Nasdaq, while U.S. oil prices

eased.

In commodity markets, gold prices rose to their highest level in

almost seven weeks following recent talks on Iran. Spot gold

was last up 4.09% at $4,242.92 an ounce.

Shares of AI and satellite company SpaceX fell more than 8%. The

company touted faster-than-expected returns from its AI spending

on its first-ever earnings call as a public company, but

investors remained concerned about how long its Starlink

business could continue to bankroll costly investments.

Chipmaker Advanced Micro Devices shares were down

more than 5% as results that beat analysts' estimates failed to

meet investors' lofty expectations.

U.S. crude fell 0.15% to $75.64 a barrel and Brent

rose to $79.79 per barrel, up 0.54% on the day.

A senior Iranian source and two regional officials told Reuters

that a proposed deal between Iran and Oman would give Tehran

control over ships entering the Gulf through the Strait of

Hormuz, in one of the biggest concessions yet to Iran.

Adam Sarhan, chief executive of 50 Park Investments in New York,

said tech shares are easing after sharp strong gains.

"Tech stocks have gone very far in a very short amount of time,"

he said. "It's gone a little bit too far, too fast. And it's

perfectly normal to see some profit taking here before, I think

we go higher... Short term, we're just a little bit overbought."

An index of semiconductors is down 0.1% on Wednesday but

remains up more than 7% for the week so far.

The Dow Jones Industrial Average rose 424.80 points, or

0.78%, to 54,509.86, the S&P 500 rose 3.23 points, or

0.04%, to 7,739.40 and the Nasdaq Composite fell 97.21

points, or 0.37%, to 26,487.78.

MSCI's gauge of stocks across the globe rose

5.12 points, or 0.45%, to 1,150.81.

The pan-European STOXX 600 index ended up 0.04%, eking

out a fresh all-time high.

Drugmaker Novo Nordisk, one of Europe's biggest

companies by market value, was down after disappointing sales of

its Wegovy weight-loss pill overshadowed a strong second-quarter

earnings beat.

HSBC ( HSBC ) shares also fell, a day after its results as

investors digested analysts' reaction to the figures.

Japan's Nikkei rose to its highest since July 23, while

South Korea's market continued its volatile run, closing

3.8% higher.

Treasury yields were little changed following a benign U.S.

quarterly refunding announcement. Investors remained focused on

economic data culminating in Friday's July employment report.

The 10-year Treasury yield was flat at 4.627%, while

the 2-year yield more sensitive to expectations

around Federal Reserve policy -- was up 2 basis points at

4.214%.

Markets also lowered the probability of a September Fed rate

hike to 57% from 67%.

The Japanese yen steadied after historic intervention. Against

the Japanese yen, the dollar weakened 0.03% to 157.67.

Japan and the U.S. launched a rare joint yen-buying

intervention last week and pledged further action if necessary

to support the currency.

The dollar index, which measures the greenback against a

basket of currencies including the yen and the euro, fell 0.11%

to 99.75, with the euro up 0.13% at $1.1544.