SK hynix
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SK hynix (000660) investor relations material

SK hynix Q4 2025 earnings summary

Complete event summary combining all related documents: earnings call transcript, report, and slide presentation.
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Q4 2025 earnings summary29 Jan, 2026

Executive summary

  • Achieved record quarterly and annual revenue and operating profit in Q4 and FY2025, driven by strong AI infrastructure investment and surging demand for memory products, especially HBM and server DRAM.

  • Strengthened technology leadership with industry-first HBM4 sample shipments and mass production readiness, and advanced DRAM and NAND product developments.

  • Maintained strong customer collaboration and trust, especially in HBM4 development and mass production.

Financial highlights

  • Q4 2025 revenue: KRW 32.83 trillion, up 34% QoQ and 66% YoY; highest quarterly revenue.

  • Q4 operating profit: KRW 19.17 trillion, up 68% QoQ and 137% YoY; operating margin 58%.

  • Q4 EBITDA: KRW 22.73 trillion, EBITDA margin 69%.

  • Q4 net profit: KRW 15.25 trillion, net margin 46%.

  • FY2025 revenue: KRW 97.1 trillion, up 47% YoY; operating profit: KRW 47.2 trillion, up 101% YoY.

Outlook and guidance

  • AI-driven demand for high-performance memory expected to remain robust, with server SSD shipments projected to grow by high teens % in 2026.

  • DRAM and NAND demand growth in 2026 expected at over 20% and high teens %, respectively.

  • CapEx in 2026 to increase considerably, but CapEx-to-revenue ratio to remain in the mid-30% range.

  • Plans to expand production base, accelerate tech migration, and ramp up advanced packaging and manufacturing facilities.

  • Anticipates continued supply tightness and plans to maximize advanced node production.

Explain the KRW 8.37T loss on EB derivatives
HBM4 mass production readiness timeline
What drove the Net Debt-to-Equity ratio shift?
HBM4 yield targets vs HBM3E 12-high
NAND strategy for AI inference workloads
Maintain mid-30% CapEx/revenue in 2026
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