Observatory · observe first

Follow the allocation change

Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.

Historical time machine
Historical observation
20182026
Universe›Information Technology›Technology Hardware, Storage & Peripherals›Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
9.50%
Industry change · 12M
+7.43 pp
Technology Hardware, Storage & Peripherals · contribution
+7.433 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Apple Inc. →
AAPL
United States$2256.0bn9.131%+9.128 pp+7.530 pp+82.3%Yes
Hewlett Packard Enterprise →
HPE
United States$15.3bn0.062%+0.062 pp-0.039 pp-21.9%Yes
Western Digital →
WDC
United States$12.7bn0.052%+0.052 pp-0.018 pp-10.9%Yes
HP Inc. →
HPQ
United States$31.7bn0.128%+0.128 pp-0.018 pp+24.1%Yes
Seagate Technology →
STX
United States$16.0bn0.065%+0.065 pp-0.012 pp+10.1%Yes
NetApp →
NTAP
United States$14.8bn0.060%+0.060 pp-0.010 pp+10.9%Yes

Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.