Are SNDK and WDC correlated?

SNDK and WDC have a 252-day pairwise correlation of 0.75 (tight). Values above 0.6 indicate the two stocks tend to move together as part of the same capital flow; below 0.4 they're largely independent.

Do SNDK and WDC share any ETFs?

Yes - 1 ETFs hold both SNDK and WDC, including DRAM.

Which bubbles or themes do SNDK and WDC share?

SNDK and WDC share these AI-supercycle groupings: DRAM / HBM Memory (bubble).

Stock comparison

SNDK vs WDC

SanDisk Corporation and Western Digital Corporation - both members of DRAM / HBM Memory.

SNDKUS

SanDisk Corporation

Last close: $835.06
Market cap: $118.8B
Sector: Information Technology
30d return: -53.0%
90d return: -58.9%
252d return: -

WDCUS

Western Digital Corporation

Last close: $263.78
Market cap: $98.7B
Sector: Information Technology
30d return: -42.3%
90d return: -55.9%
252d return: -

252-day correlation

0.75tight

Pearson correlation of daily log-returns over the last 252 trading days. >0.6 = tight (move as one bloc); 0.4-0.6 = thematic linkage;<0.4 = largely independent. See the full matrix.

Shared context

Bubbles

DRAM / HBM Memory

ETFs (1)

DRAM

Want the full picture? SNDK stock page · WDC stock page · full correlation matrix

Data refreshes daily. Last close 2026-11-08.