Samsung vs SK Hynix
Samsung Electronics · SK Hynix — 0.69, ranging +0.31 to +0.90 year by year
1-year rolling correlation · green together, red apartas of 2026-09-11
- +0.69normally
- +0.60in crashes
- +0.31 ~ +0.901-year range
- 1.18positions if held 50/50
Nothing surprising, and that is the answer
They correlate 0.69, and +0.60 in crashes — not much of a change.
The one-year correlation does range +0.31 to +0.90, so the curve tells you more than the average.
Try it on your own portfolio
Opens with these two already entered. Add what you hold and the vs the rest and New columns answer whether to add one more.
Open with Samsung Electronics · SK HynixWeekly returns, 609 weeks since 2015, every price converted to USD. “Crashes” means the 5% of weeks Samsung Electronics fell hardest. One sample, one window — not a promise about the future.