SK hynix 2Q26 provisional results: the questions behind record numbers
The company reported record quarterly figures, yet the market response remained cautious. This note reviews the provisional numbers and the questions to track across HBM4, investment spending, Chinese memory competition and shareholder returns.

Record results, a cautious market
SK hynix presented provisional 2Q26 revenue of KRW 79.3T and operating profit of KRW 60.5T, both quarterly records. First-half revenue was KRW 131.9T and net cash was reported at KRW 69.4T.
The supplied note records a 14.65% share-price decline on July 28. If the headline numbers were so strong, why did the market react differently? This review reframes the quarter around four questions: cash flow, capital spending, competition and shareholder returns.
The larger the number, the more important it is to ask where it came from and where it is going.
The provisional quarter at a glance
Four variables behind the numbers
HBM4 is the next test of technology leadership
The supplied note says HBM4 volume shipments began in the quarter and HBM4E samples were delivered. The next test is whether customer breadth and long-term contracts translate into volume, yield and durable margins.
For capex, the total matters as much as the direction
M15X, Yongin, advanced packaging and NAND investments are moving in parallel. Without an annual and medium-term total, it is difficult to estimate how much operating profit will remain as free cash flow.
Separate commodity memory pressure from HBM barriers
Chinese DDR5 expansion can pressure commodity DRAM pricing. HBM4 packaging, TSV capability and customer qualification create a different barrier. The two markets should be tracked separately.
How accumulated cash is allocated
As net cash rises, the rules for balancing investment, dividends, buybacks and acquisitions become more important. Any governance change should also be assessed by its concrete effect on minority shareholders.
Reading the change in charts
What to check after the final filing
- 01Reported FCF
Use OCF and capex to test how much operating profit converted into cash.
- 02Total capex
Check aggregate annual and medium-term spending across the large projects.
- 03Quality of net income
Separate recurring earnings from one-off non-operating items.
- 04Shareholder returns
Look for a numerical framework covering dividends, buybacks and investment.
- 05HBM competitiveness
Track yield, customer mix, contracts and HBM revenue share alongside shipments.
- 06Governance
If restructuring becomes concrete, review the terms and minority-shareholder impact.
Do not rush the conclusion
HBM4 leadership, a high operating margin and rapidly rising net cash are powerful signals. The quality of FCF, total capex, shareholder returns and Chinese competition remain open questions.
A grounded review should wait for OCF and capex in the final filing and look for a numerical capital-allocation policy. The assumptions and open questions are more useful when recorded and compared with the next quarter.