GLOBAL MARKETS-Stocks rally on AI optimism; jitters over Iran simmer

Alphabet Inc. Class A
NVIDIA Corporation
S&P 500 index
NASDAQ

Alphabet Inc. Class A

GOOGL

0.00

NVIDIA Corporation

NVDA

0.00

S&P 500 index

SPX

0.00

NASDAQ

IXIC

0.00

AI optimism and strong tech forecasts drive global stock rally

Oil slips, but Middle East tensions persist

Euro zone core inflation rises, ECB rate hike expected

Updates prices

By Amanda Cooper

- Global stocks rallied on Tuesday, buoyed by fresh AI optimism after Anthropic moved towards a U.S. stock market listing, while oil prices and bond yields fell on renewed hopes of a U.S.-Iran deal.

Brent crude futures LCOc1 dropped more than 1% below $94 a barrel, paring the previous session's sharp gains, after U.S. President Donald Trump said talks with Iran continued.

His comments came despite a report that Tehran had suspended indirect negotiations with Washington to end hostilities, keeping investors cautious about efforts to end the three-month war and underlining the fragility of an ongoing ceasefire.

Europe's STOXX 600 .STOXX was up 0.7% by midday, as a strong forecast from chipmaker STMicroelectronics .STMMI.MI lifted technology stocks.

AI ENTHUSIASM

Anthropic said on Monday it had confidentially filed for a U.S. initial public offering, edging ahead of rival OpenAI in a closely watched race to reach public markets. Google parent Alphabet GOOGL.O is also seeking to raise $80 billion in equity to fund the expansion of its AI infrastructure.

"This speaks to the huge sums involved in keeping pace in the AI arms race. It represents a significant shift from a period of bumper free cash flow to going cap in hand to the markets to help fund its expansion," Russ Mould, investment director at AJ Bell, said.

On the economic front, the Institute for Supply Management on Monday said U.S. manufacturing PMI rose to 54.0 in May from 52.7 the previous month, beating expectations to hit a four-year high, likely driven by firms front-loading orders amid rising prices and supply concerns linked to the Iran war.

Futures on the S&P 500 ESc1 and Nasdaq 100 NQc1 were down around 0.1% to 0.2%, pointing to a slightly weaker open after both indexes posted an eighth straight gain and fresh record highs on Monday .SPX, .IXIC.

"That marks the first time in a year the S&P has achieved eight consecutive daily gains. And if you look at the moves on a weekly basis, a positive gain this week would be the S&P’s 10th consecutive advance, which is something we haven’t seen since 1985," Deutsche Bank strategist Jim Reid said.

In Taipei, Nvidia NVDA.O CEO Jensen Huang said the company had enough supply to support strong growth in central processing units (CPUs) and graphics processing units (GPUs), but acknowledged supply constraints remained a concern.

South Korean equities were volatile, with the benchmark KOSPI swinging sharply lower after hitting a record high as bellwethers, such as Samsung Electronics 005930.KS and SK Hynix 000660.KS, seesawed.

In currency markets, the dollar edged slightly lower. The euro EUR=, still 1.5% below its level at the start of the war, was last up 0.1% on the day at $1.1646.

Data showed euro zone core inflation at 2.5% year-on-year in May, above expectations of 2.4% and April's 2.1%. Money markets price in a quarter-point European Central Bank rate hike this month, with at least one more by year-end 0#EURIRPR.

In bonds, the U.S. 10-year Treasury yield fell nearly 5 basis points to 4.429%, while Germany's 10-year Bund yield dropped 6 bps to 2.953%.

Gold XAU= rose 1% to $4,527 an ounce.