Micron Earnings Boost AI Confidence, Tech Stocks Lead Gains in Japan and South Korea
N.R. Finch
Micron Technology issued a quarterly sales forecast that beat Wall Street expectations, sending the Nikkei 225 up as much as 3% and Korea's Kospi up 6% intraday — partially recovering a 4.4% two-day slide and reopening the rally window for chip stocks.
What did Micron actually say to trigger an Asia-wide chip rally?
Micron surged in after-hours trading after its quarterly sales forecast beat Wall Street expectations.
Qualcomm added fuel with several upbeat statements on AI-driven growth prospects; the two together ignited bullish sentiment across Asian chip names.
This means → the market read Micron's report as a signal that AI demand has not collapsed, and capital shifted from wait-and-see to offense.
How much did Japan and Korea actually gain — and who led?
The Nikkei 225 rose as much as 3% intraday; chip-testing equipment maker Advantest was among the top gainers.
The broader Topix index was up 1.1% as of 10:10 a.m. Tokyo time.
Korea's Kospi surged as much as 6%, with SK Hynix rallying sharply after announcing plans for a U.S. listing.
Why did stocks fall beforehand — and what explains the bounce?
The Nikkei 225 had dropped a combined 4.4% over the prior two sessions as investors extended a broader tech selloff ahead of Micron's results.
Sumitomo Mitsui Trust Asset Management chief strategist Hiroyuki Ueno explained: investors holding long positions had built up sizable gains and took profits before the report, then bought back once the numbers confirmed no miss.
In plain terms = sell first to lock in gains, wait for the report card, buy back if it looks fine — that is the script behind this "drop then bounce" cycle.
Can the rally last — and where is the risk?
Nomura Securities senior strategist Takashi Ito cautioned that Micron's report did not eliminate concerns about overinvestment in data centers.
He warned that AI-linked stocks may continue to swing sharply on headline flow.
This means → whether this bounce holds depends on whether subsequent AI capital-expenditure data keep confirming real demand — one earnings report opened a window, but it is not enough to close the doubt.
Content is for reference only, not financial advice.