Stocks sink, oil jumps following Israel's attack on Iran

Asian shares and bond yields sank while safe-haven currencies, gold and crude oil jumped after reports Israel attacked Iran in a continuing series of assaults that have increased concerns of a wider Middle East conflict.

However, the scope of the market moves was mitigated on Friday somewhat as details emerged the Israeli attack was limited and Iranian officials denied any missiles were launched against it.

MSCI's broadest index of Asia-Pacific shares dropped 2% after earlier diving as much as 2.6%, and US stock futures pointed 1% lower, retracing part of an initial 1.7% slide.

US long-term Treasury yields were last down 9 basis points (bps) at 4.5567%, after earlier dropping as much as 15 bps. The safe-haven yen had rallied as much as 0.7% against the dollar, but was last up about 0.3%. The Swiss franc was about 0.6% higher versus the dollar, paring earlier gains of as much as 1.2%.

Gold added 0.6%, but was earlier up as much as 1.7% at $2,417.59, taking it just shy of last week's all-time high at $2,431.29.

Investors seek safe havens

"The lack of clarity on...what Iran might do next will keep investors nervous and market volatile for now, at a time when investors are faced with significant inflation and interest rate uncertainties as well," said Vasu Menon, managing director of investment strategy at OCBC.

Brent futures surged as much as 4.2%% on concerns Middle East supply could be disrupted, but were last up 2.4% at $89.22. Iran is the third-largest oil producer of the Organization of the Petroleum Exporting Countries, according to Reuters data.

Bitcoin dropped as much as 6.2% to a 1-1/2-month low of $59,590.74, before last tra ding about 2.7% lower at $61,842.

Israeli Prime Minister Benjamin Netanyahu had vowed retaliation earlier this week after Iran launched hundreds of drones and missiles in an unprecedented direct attack on Israel on April 13.

That attack was in response to a suspected Israeli strike on April 1 on an Iranian embassy compound in Syria that killed senior Iranian military commanders.

A source familiar said Israel had informed the United States in advance of its attack on Iran.

Japan's Nikkei was last down 2.4%, while Taiwan's stock benchmark fell 3.5%. Hong Kong' s Hang Seng lost 1.2%.

Equity markets were already heading lower before the Middle East headlines, as more robust US economic data spurred additional Federal Reserve officials to signal no rush to lower interest rates.

Chip sector stocks suffer

Chip-sector stocks were hit particularly hard by both the outlook for protracted tight monetary policy and investor disappointment at Taiwan Semiconductor Manufacturing Co's decision to leave capital spending plans unchanged. The stock slumped as much as 6.6%.

A day earlier, ASML, the largest supplier of equipment to computer chip makers, reported lacklustre new bookings.

"A triple whammy of sorts for the markets, as Fed's hawkishness keeps taking a leg up with each passing day and semiconductor earnings have so far fallen short," said Charu Chanana, head of currency strategy at Saxo.

"To top it off, geopolitical risks have escalated again...and risk sentiment could remain weak as we await more details on damages and casualties."