SK Hynix's Record-Breaking Share Cancellation Gets Swept Away in a Global Rate Storm

SK Hynix announces record $28.3B share buyback, but a global tech rout and surging Treasury yields send its stock down 9.8%.

The timing could hardly have been more awkward. Just as SK Hynix unveiled the largest share buyback in South Korean corporate history, a worldwide selloff in technology stocks sent its own shares into a tailspin, leaving the memory-chip maker's landmark capital return announcement fighting for attention in a sea of red.

The stock tumbled 9.8 percent to 1.5 million won in Seoul trading, leaving the equity roughly 26 percent below its 50-day moving average. The rout wasn't confined to SK Hynix — the KOSPI benchmark shed about 5.8 percent, triggering the year's 25th sell-sidecar, an automatic trading halt mechanism that kicks in during extreme market swings. Samsung Electronics, the country's other semiconductor heavyweight, dropped around 7.8 percent.

A $28 Billion Signal of Financial Strength

At the center of the chaos, SK Hynix's board approved a buyback and full cancellation of roughly 24.07 million shares — about 3.3 percent of the 730,492,365 shares outstanding — valued at approximately 40 trillion won, or $28.3 billion. It marks the biggest share cancellation ever executed by a listed Korean company. The repurchase program begins tomorrow and is slated to run about three months, through mid-November.

The move is paired with an upgraded capital return target: the company now pledges to hand back more than 50 percent of its cumulative free cash flow for 2025 through 2027, up from a previous goal of up to 50 percent. Additional measures, potentially including a special dividend, are expected when third-quarter results are released.

The announcement is designed to reassure investors that SK Hynix's balance sheet can absorb the hit. At the end of the second quarter, the company held a net cash buffer of roughly 69 trillion won — enough firepower to fund the buyback without crimping the capital expenditures needed for chip production.

In US trading, the news initially drew a positive reaction, with shares climbing about 4 percent. In Seoul, however, the broader market selloff proved too powerful to overcome.

The Rate Shock Behind the Selloff

The trigger for Wednesday's carnage was macro rather than company-specific: the yield on 30-year US Treasuries surged to 5.33 percent, its highest level since 2007, pulling capital out of growth-oriented technology names. The pain rippled across the sector globally — Micron lost around 7 percent, SanDisk dropped roughly 10 percent, Kioxia in Tokyo fell 11 percent, and the Philadelphia Semiconductor Index posted its steepest daily decline since July.

Adding to the anxiety are reports that hyperscalers have already issued $165 billion in bonds this year to bankroll AI data centers, with expectations of expansion to around $400 billion. Failed negotiations in the Iran conflict and rising oil prices compounded the gloomy sentiment.

Glimmers of Support

A few mitigating factors emerged amid the turmoil. Nvidia chief Jensen Huang characterized the tech selloff as a buying opportunity, pointing to a new multi-year agreement between Nvidia and SK Hynix to co-develop next-generation AI memory chips. That comment helped SK Hynix pare some of its intraday losses. South Korean President Lee Jae-myung also weighed in, suggesting the KOSPI was undervalued.

Meanwhile, on the labor front, SK Hynix's union finalized the wording of a tentative wage agreement with management, according to Reuters, with details slated for release on August 21. The deal, reached after overnight negotiations, reportedly involves paying part of the profit-sharing bonus in shares rather than cash — a model Samsung already uses with a rate of 10.5 percent of operating profit. The union planned to brief its more than 3,000 members on the terms.

A Stock Caught Between Fundamentals and Fear

Foreign investors dumped net several trillion won worth of Korean equities, while institutional players also retreated. Retail investors, by contrast, bought against the trend. A brief recovery rally on Tuesday — dubbed the "Samson-Nix Rally" by market watchers — fizzled quickly, with the KOSPI climbing intraday to 7,216 points before sliding back to 6,869.

The stock now trades roughly 50 percent below its 52-week high of 2,987,000 won, reached as recently as June, though it remains well above its 52-week low of 319,000 won from last September. With a 25 percent gap from its 50-day average and annualized volatility of 140 percent, the current price action reflects just how jittery the market has become toward the stock.

For investors, the picture is split down the middle: the fundamental story of generous capital returns remains intact, but short-term price action is being dictated by global risk aversion toward richly valued technology stocks.