* Indexes: Dow up 1.70%, S&P 500 up 0.26%, Nasdaq down

0.19%

* U.S. chipmakers dip after Broadcom's ( AVGO ) quarterly results

* CrowdStrike ( CRWD ) slumps on rise in quarterly operating

expenses

* Weekly jobless claims increase more than expected, data

shows

(Adds comments, updates prices)

By Medha Singh and Twesha Dikshit

June 4 (Reuters) - The Dow scaled an all-time high and

the S&P 500 rose on Thursday, lifted by UnitedHealth ( UNH ) and

financials shares, while Broadcom's ( AVGO ) results fell short of high

investor expectations, dragging down chip stocks and the Nasdaq.

Broadcom ( AVGO ) shares slumped 14% after the chipmaker also

maintained its long-range forecast of $100 billion in sales from

its AI chips. The stock has climbed nearly 55% this quarter and

could shed nearly $320 billion in market value if losses hold

through the session.

The S&P 500 tech index dropped the most, down

1.8%, while the Philadelphia SE Semiconductor index

tumbled 2.8%.

"Broadcom ( AVGO ) earnings (were) good news other than the fact that

their guidance wasn't what the market may have been expecting,"

said Dustin Thackeray, chief investment officer at Crewe

Advisors.

"The chips are due for a bit of a breather. Obviously,

they've had a tremendous run-up from end of March lows."

After a weak start to the session, the S&P 500 turned higher as

a rotation out of tech shares boosted other areas of the market,

with nine out of 11 major S&P 500 sectors in the green.

Healthcare shares added 3.1%, aided by a 5.7% advance

in UnitedHealth ( UNH ) after Bank of America raised its rating

on the healthcare conglomerate's shares to "buy."

The financial index rose 1.8% after a sharp fall in

the previous session on renewed concerns over private credit.

Blackstone became the latest asset manager to cap

withdrawals from its flagship private credit fund following a

rise in redemption requests.

The rally on Wall Street has stalled this week as investors

weigh a renewed flare-up in hostilities between the United

States and Iran.

Although the two sides agreed to a ceasefire in early April,

talks to end the war and reopen the Strait of Hormuz have made

little progress, threatening to keep oil prices elevated and

stoke inflation.

At 11:29 a.m. ET, the Dow Jones Industrial Average rose

862.27 points, or 1.70%, to 51,549.34, the S&P 500 gained

19.32 points, or 0.26%, to 7,573.00 and the Nasdaq Composite

lost 51.21 points, or 0.19%, to 26,802.76.

The small-cap Russell 2000 gained 1.3%.

Weekly jobless claims data showed the number of Americans filing

claims increased more than expected last week, ahead of Friday's

broader monthly employment report.

The data will give new Federal Reserve Chairman Kevin Warsh

a fresh read on the U.S. labor market as he heads into his first

policy meeting this month, at a time when U.S. consumers are

under strain from Iran war-driven price pressures.

Traders see a 75% chance of a 25-basis-point rate hike before

the end of the year, LSEG data showed.

Among market movers, CrowdStrike ( CRWD ) slumped 8.5% after the

cybersecurity company reported a rise in its first-quarter

operating expenses.

An investor roadshow for Elon Musk-led SpaceX begins on

Thursday ahead of its market debut on June 12. It aims to raise

$75 billion in a record IPO that would value it at $1.75

trillion and rank it among the top 10 U.S.-listed firms.

Advancing issues outnumbered decliners by a 1.72-to-1 ratio

on the NYSE and by a 1.34-to-1 ratio on the Nasdaq.

The S&P 500 posted 7 new 52-week highs and no new lows while

the Nasdaq Composite recorded 21 new highs and 40 new lows.