SK Hynix Loses 2.4% as Lockup Expiry Loosens Share Supply Ahead of October Earnings

SK Hynix closed at 1,681,000 KRW, down 2.4%, as Samsung's weak preliminary results and rising yields pressured memory-chip shares.

A wave of sector-wide weakness swept through memory-chip equities on Friday, dragging SK Hynix down 2.4% to close at 1,681,000.00 KRW on the final trading day of the week. The decline came as disappointing preliminary quarterly figures from rival Samsung Electronics combined with rising US Treasury yields and climbing oil prices to sour sentiment across Asian semiconductor counters.

The selling pressure wasn't confined to SK Hynix. Micron and SanDisk both absorbed heavy losses as investors retreated from the broader storage segment, spooked by mounting questions over future memory supply and pricing dynamics.

Supply Overhang Meets Earnings Jitters

Thursday's session brought a concrete structural shift for SK Hynix: the expiration of a 90-day lockup period covering certain company shares. With that restriction lifted, a fresh batch of stock became eligible for trading, adding incremental supply to the market. The lockup had previously barred the company itself, affiliated entities, and management from offloading their holdings.

Layered on top of that technical development are expectations of softer near-term profitability. Market watchers point to a strengthened South Korean won and anticipated one-off costs tied to employee bonuses as factors that could weigh on results.

All eyes now turn to October 27, 2026, when SK Hynix is scheduled to release its third-quarter financial report. The filing represents the key event for investors seeking to measure how the company's recent operational agreements and structural moves translate into hard numbers.

AMD Ties Deepen as Lisa Su Visits Seoul

On the partnership front, AMD chief executive Lisa Su traveled to South Korea on Wednesday for talks with SK Hynix chairman Kwak Noh-jung. Their discussion centered on collaboration in artificial intelligence and memory solutions. Su singled out SK Hynix — alongside Samsung Electronics — as a core partner in AMD's memory supply chain, a designation that underscores the Korean chipmaker's growing strategic importance in the AI hardware ecosystem.

Gwangju Fab Push and Solidigm IPO Speculation

Longer-term capacity planning also featured prominently this week. Chey Tae-won, chairman of the SK Group, said SK Hynix intends to accelerate construction of semiconductor fabrication plants within the planned Gwangju cluster as quickly as possible. He cited sustained rapid growth in chip demand as the rationale, though he stopped short of providing a start date for groundbreaking.

Separately, reports surfaced that US subsidiary Solidigm has selected Goldman Sachs and Morgan Stanley as lead underwriters for a potential stateside listing — one that could raise roughly $10 billion. Some media accounts suggest the offering could materialize in 2027. SK Hynix responded by saying it is evaluating various options to bolster Solidigm's competitiveness but has made no decision regarding an initial public offering.

Year-to-Date Momentum Intact

Despite the recent consolidation, SK Hynix shares remain sharply higher over the broader stretch. The stock has gained 159% since the start of the year. What matters for market participants going forward is how resiliently the company's profitability can hold up against the headwinds buffeting the wider memory sector — and whether management uses the October 27 earnings call to shed further light on its strategic roadmap.