SK Hynix Climbs 4% on Record Buyback, Micron Ticks Up as Memory Defies the Tech Selloff
SK Hynix Climbs 4% on Record Buyback, Micron Ticks Up as Memory Defies the Tech Selloff
David MoadelThu, August 20, 2026 at 6:31 PM UTC
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SK hynix's record 40 trillion won buyback pushed SKHY up 4%, outpacing Micron (MU) at 2% as the payout gap drives today's differential.
SanDisk (SNDK) has surged 561% year-to-date while QQQ gained only 17%, underscoring how dramatically memory stocks have outrun the broader NASDAQ 100.
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Memory is the one corner of technology holding green while the rest of the tape bleeds red Thursday afternoon. SK Hynix (NASDAQ:SKHY) is leading on a fresh capital-return catalyst that its American peers can't match, and the split between what the group is doing and what the broader index is doing tells the whole session's story.
The Korean memory giant's stock is up 4% to $162.04, while Micron Technology (NASDAQ:MU) shares are up 2% to $952.39. SanDisk (NASDAQ:SNDK) stock is up 1% to $1,584.36 and Western Digital (NASDAQ:WDC) shares are up 1% to $466.23. Against that, the NASDAQ 100 tracking Invesco QQQ Trust (NASDAQ:QQQ) is down 1% to $711.06, an unlevered read on the NASDAQ 100 that shows how narrow today's memory bid really is.
Year to date (YTD) through Wednesday's close, the divergence looks even sharper. SanDisk stock is up 561%, Micron Technology stock is up 229%, and Western Digital stock is up 168%, while the Invesco QQQ Trust is up 17%. That gap is the setup traders are working against Thursday, and the memory names are widening it further with a red benchmark behind them.
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Korean Buyback Catalyst Lifts the Tape
The immediate trigger comes out of Seoul this time. SK Hynix announced a record 40 trillion won share buyback Wednesday, committing more than half of its cumulative free cash flow from 2025 through 2027 to shareholders, up from a prior commitment of up to 50%. That is a structural shift in how the company plans to return cash, and it landed in front of a U.S. session where large-cap technology was already softening.
Separately, Samsung Electronics is reportedly weighing a shareholder return plan worth more than 100 trillion won, or roughly $72 billion, that would return 50% of free cash flow with dividends making up most of the payout, according to Korean outlet MoneyToday. Samsung declined to comment. Combined, the two headlines reframed the Korean memory complex as a payout story sitting on top of the AI cycle, and that is what U.S. buyers are chasing in SK Hynix's ADRs.
The Korea-listed reaction dwarfs what the American line is doing. SK Hynix's Korea-listed shares surged 14% Thursday and Samsung's Korea-listed shares rose more than 10% at their session high, moves that are far larger than the 4% gain in the NASDAQ-listed SK Hynix shares. The U.S. quote is catching up rather than tracking one-for-one.
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Why SK Hynix Is Leading Micron Today
SK Hynix and Micron both sit at the center of the high-bandwidth memory pipeline into AI accelerators, and both are working. The company holds a 56.4% share of the global high-bandwidth memory market according to its own regulatory filings, and the AI-driven pricing cycle has lifted every name in the group. That shared driver is why the memory tape is green while QQQ is red.
What separates SK Hynix from Micron Technology on the day is Korea's capital-return story. The Korean chipmaker has a fresh buyback commitment on the tape and Micron does not, which is why one is up 4% and the other 2%. The differential is entirely payout-driven and sits outside the AI memory cycle's fundamentals.
Over a longer window the ranking reverses. Micron Technology stock is up 229% YTD, while SK Hynix has only traded in the U.S. since July. SK Hynix priced its American depositary receipts at $149 in July, and the ADRs trade at $162.04 Thursday afternoon, giving American investors a short and mostly untested track record on the name.
What to Track as Korea Reopens
A U.S.-listed share responding to an overnight move in a Korean listing can reprice again when Korea reopens, so position sizing in SK Hynix should stay smaller than the day's confidence would suggest, and the gap between the two listings is the thing to watch rather than the U.S. print on its own. Traders can stay tuned for signs that the ADRs close in on the 14% Korea move or fade back toward the group's 1% to 2% average bid as U.S. sellers step in.
If QQQ stays soft and memory holds Thursday's bid, this looks like a durable rotation inside technology rather than a one-day quirk. The Seoul payout story just added a second reason to own the group on top of the AI cycle already in the numbers (we reverse-engineered what the biggest semiconductor winners looked like early in a free playbook you can grab here).
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Source: “AOL Money”
