SK hynix Inc. (000660.KS), explained in plain English

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SK hynix Inc.

(000660.KS ↗)

skhynix.com ↗

The Korean memory-chip maker behind the *high-bandwidth memory (HBM)* that AI accelerators can't run without. *Revenue crossed ₩50 trillion for the first time. Operating margin hit 72%. The strongest quarter in the company's history.*

Updated · Q1 FY2026 (earnings release) · April 2026

Chapters

~22

Min read

≈$66B / yr (₩97.1T, FY2025) revenue · ~47K employees · public since 1996

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Spice: Jalapeño (3/5)

More filled = spicier (more aggressive), not "better." Tap a row to see what it means.

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0 of 6

Growth

~5 min

The Quarter That Crossed ₩50 Trillion

In three months SK hynix booked *more operating profit than it made in most full years* — and it was almost all about one product: memory for AI.

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Financial Health

~4 min

Record Profit, Fortress Balance Sheet

SK hynix is making more money than ever — and sitting on *₩35 trillion more cash than debt.* For a company about to spend heavily, that cushion matters.

Only a *handful* of companies on Earth can make memory at this level — and SK hynix got to the next generation, *HBM4,* first.

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Management

~3 min

The Operator and the Cash

A 40-year-old company, a CEO who came up through the technology, and a record year that flowed straight back to shareholders.

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Behind the Numbers

~2 min

What Management Is Telling You

Strip away the headline numbers and three themes run through the company's own first-quarter remarks.

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Risk

~4 min

What Could Break the Brief

The same forces driving the record — one product, a few customers, a steep cycle — are also the risks. *What goes up this fast can come down.*

↻ Next update · Jul 23

est. Jul 23, 2026 · Q2 FY26 results · SK hynix IR ↗

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↻ The read keeps updating

You're reading the 6 opening chapters built from SK hynix's first-quarter 2026 earnings release (the company is listed in Korea and publishes K-IFRS results, not SEC 10-Ks). Each time SK hynix posts new quarterly or annual results, the chapters get updated here.