Key Highlights

  • SK hynix, the South Korean memory chip maker, saw its US-traded line rise about 8% in pre-market trading on Wednesday, October 28, 2026, while Korean shares rose about 10%, after the company's results release of that day.
  • The company's release of Wednesday, October 28, 2026 (preliminary, unaudited) put third quarter 2026 revenue at KRW 104.6155 trillion, up 328% year on year, and operating profit at KRW 83.3338 trillion, up 632%.
  • Operating margin reached 80%, against 76% in the second quarter of 2026 and 47% in the third quarter of 2025, while cash stood at KRW 114.5 trillion and net cash at KRW 98.7 trillion.
  • Operating profit was above the earlier consensus of KRW 76.964 trillion on simple comparison, and the pre-market gain is a thinly traded snapshot that can change before the open.

The Pre-Market Move and Its Catalyst

SK hynix, a South Korean maker of DRAM and NAND memory chips and of high bandwidth memory (HBM, the stacked memory placed beside artificial intelligence processors), saw its US-traded line, quoted as SKHY, rise about 8% in pre-market trading on Wednesday, October 28, 2026. Korean shares of the company rose about 10%. The catalyst was the company's release of Wednesday, October 28, 2026, which reported third quarter 2026 revenue of KRW 104.6155 trillion, the first quarter above KRW 100 trillion, and operating profit of KRW 83.3338 trillion. Pre-market prices are thinly traded and can change before the open at 9:30 a.m. ET, so the move is a snapshot rather than a settled valuation.

How the Results Compare With Consensus

The test for the result is the earlier consensus operating profit of KRW 76.964 trillion. Reported operating profit of KRW 83.3338 trillion was above it, by about 8.3% on simple arithmetic. Revenue rose 32% from KRW 79.3187 trillion in the second quarter of 2026, and operating profit rose 38% from KRW 60.5426 trillion. Net income was KRW 39.7756 trillion, a net margin of 38%, against KRW 93.9226 trillion in the second quarter, a very large base that explains the 58% quarterly fall. HBM4 shipments began in earnest, and the company expects HBM4 to surpass HBM3E in shipment volume and revenue in the fourth quarter.

Risks and What to Watch

The bull reading holds that profit above consensus, an 80% operating margin and long-term supply agreements covering more than 50% of 2027 and 2028 production capacity validate the pricing and mix shift. The bear reading holds that expectations were already high, so profit taking is possible after a 10% rise in Korea. Three risks stand out: the figures are preliminary and unaudited, investment at the Yongin site is expected to rise significantly, and a weaker won carries a cost sensitivity discussed in company filings. Investors should watch the shareholder return detail, the audited figures and the open at 9:30 a.m. ET on Wednesday, October 28, 2026.

Where Things Stand

The answer is that the company's release indicates a result above consensus, with operating profit of KRW 83.3338 trillion against an earlier estimate of KRW 76.964 trillion, although the figures are preliminary and unaudited. The key number is the 632% year on year rise in operating profit. The next catalysts are the 9:30 a.m. ET open on Wednesday, October 28, 2026, the decision of the Federal Reserve due later that day, and the audited results. Pre-market prices are snapshots and can change, and this is not investment advice.