South Korea's Kospi share index falls 8%, other Asian shares are also mostly lower

TOKYO (AP) — South Korea’s Kospi stock index dropped more than 8% on Wednesday as doubts over massive investments in artificial intelligence once again led investors to dump shares.

The latest rout was led by a plunge in shares in chipmaker SK Hynix after its operating profit in the last quarter fell short of analysts’ forecasts even though it soared sixfold to a record 60.5 trillion won ($41.2 billion).

By midday in Seoul, the Kospi was down 8.2% at 5,531.56. The benchmark only recently had topped 9,000 before toppling back to its lowest level since early April.

SK Hynix sank 12.6% while shares in Samsung Electronics dropped 8%.

Other Asian markets also mostly declined.

In Tokyo, the Nikkei 225 lost 1.8% to 61,038.63, giving up early gains.

Japanese stocks were mixed in their reaction to a major earthquake that rattled the southern Kyushu region a day earlier. A previous earthquake in the region caused severe damage and disruptions for automakers and other manufacturers.

Shares in Nippon Paper, owner of a mill in the disaster zone that was severely damaged by Tuesday’s quake, fell 1%

Taiwan’s Taiex shed 3.6%.

The Shanghai Composite index fell 0.5% to 3,793.11.

Hong Kong's Hang Seng countered the regional trend, gaining 1.7% to 25,738.42 and in Australia the S&P/ASX 200 added 1% to 9,036.90.

Oil prices that had eased from the two-month high that they hit last week rebounded.

Brent crude, the international standard, jumped 4.2% to $87.58 a barrel.

Benchmark U.S. crude also gained 4.2%, to $82.58.

On Tuesday, shares were mixed on Wall Street.

The S&P 500 added 0.2% and the Dow Jones Industrial Average jumped 1%.

The Nasdaq composite slipped 0.2%.

The majority of U.S. stocks rose after more companies delivered stronger profits for the spring than analysts expected. Coca-Cola climbed 5% after its revenue rose 7%.

Expectations for stellar earnings reports are weighing particularly heavily on stocks of chipmakers and other companies that have been huge winners from the boom in artificial-intelligence technology.