Observatory · observe first

Western Digital

WDC · United States · Technology Hardware, Storage & Peripherals · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.048%
12M weight contribution
+0.013 pp
3M weight contribution
+0.015 pp
12M price return
+11.9%

Share of matched S&P 500 members

Monthly observations through Jun 2025

0.00.10.120182019202020212022202320242025

Company price index

A separate dimension from market allocation

417110220182019202020212022202320242025

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Jun 2025$22.3bn0.048%+0.013 pp+11.9%Yes
May 2025$18.0bn0.041%+0.005 pp-9.4%Yes
Apr 2025$15.3bn0.037%-0.014 pp-18.1%No
Mar 2025$14.1bn0.033%-0.013 pp-21.6%No
Feb 2025$17.0bn0.038%-0.004 pp+8.9%No
Jan 2025$17.1bn0.038%-0.004 pp+13.8%No
Dec 2024$15.6bn0.035%-0.003 pp+13.9%No
Nov 2024$19.1bn0.042%+0.005 pp+51.1%Yes
Oct 2024$17.1bn0.040%+0.007 pp+62.7%Yes
Sep 2024$17.7bn0.041%+0.004 pp+49.7%Yes
Aug 2024$17.0bn0.041%+0.006 pp+45.8%Yes
Jul 2024$16.5bn0.030%+0.007 pp+57.5%No
Jun 2024$18.7bn0.035%+0.014 pp+99.8%No
May 2024$18.6bn0.036%+0.012 pp+94.4%No
Apr 2024$17.5bn0.051%+0.023 pp+105.7%Yes
Mar 2024$16.8bn0.047%+0.016 pp+81.2%Yes
Feb 2024$14.6bn0.042%+0.009 pp+54.5%Yes
Jan 2024$14.0bn0.042%+0.006 pp+30.3%Yes
Dec 2023$12.8bn0.038%+0.011 pp+66.0%Yes
Nov 2023$11.8bn0.037%+0.007 pp+31.5%Yes
Oct 2023$9.8bn0.033%+0.004 pp+16.8%Yes
Sep 2023$11.1bn0.037%+0.007 pp+40.2%Yes
Aug 2023$10.9bn0.035%-0.001 pp+6.5%Yes
Jul 2023$10.3bn0.022%-0.018 pp-13.3%No

Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.