KOSPI Spikes 5% on Opening, Riding Micron’s Surprise Earnings

South Korea’s KOSPI surged greater than 5% on the open on June 25, pushing again above 8,900 from 8,400 the prior session. Micron Technology’s fiscal Q3 2026 outcomes, which nicely exceeded Wall Street expectations, drove the transfer.

The Korea Exchange (KRX) activated a buy-side sidecar shortly after the open, suspending program buying and selling for 5 minutes. The mechanism triggers when the KOSPI 200 Futures index climbs 5% or extra for at the very least one minute.

Micron Results Catalyze the Move

Micron reported fiscal Q3 2026 income of $41.46 billion, greater than 4 instances the $9.30 billion it posted in the identical quarter a 12 months earlier. Adjusted earnings per share got here in at $25.11, nicely above the analyst consensus of round $20.78. The inventory gained roughly 15% in after-hours buying and selling following the announcement.

SK Hynix jumped greater than 10% in early morning buying and selling and triggered a static volatility interruption (VI) on the open, briefly switching to single-price buying and selling for 2 minutes. After the VI lifted, the inventory moved rapidly again towards its prior degree.

Samsung Electronics and SK Hynix reclaimed the 360,000 received and a couple of.8 million received ranges, respectively. As BeInCrypto reported, SK Hynix recently surpassed Samsung in market cap for the primary time since 2000.

Ok Hynix and Samsung Lead the Charge

By investor sort, people net bought roughly 490 billion received and establishments added round 100 billion received. Foreign buyers internet offered roughly 600 billion received, extending a streak of internet promoting that has now totaled round 12.2 trillion received over the previous 5 buying and selling days.

The divergence mirrors the sample seen after South Korea’s previous market rebound, when retail patrons absorbed international promoting within the early session.

Han Ji-young, a researcher at Kiwoom Securities, pointed to a mix of macro tailwinds and Micron’s outperformance.

“In a positive macro setting, together with falling oil costs and the U.S. 10-year Government Bonds yield falling beneath 4.4%, Micron’s earnings shock and the greater than 5% power within the KOSPI200 night time futures mixed to ship the index surging on the open.” — Han Ji-young, Kiwoom Securities

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