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
5.52%
Industry change · 12M
+3.40 pp
Technology Hardware, Storage & Peripherals · contribution
+3.405 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Apple Inc. →
AAPL
United States$2215.4bn5.306%-3.457 pp+3.636 pp+72.0%Yes
HP Inc. →
HPQ
United States$31.4bn0.075%-0.042 pp-0.078 pp+18.4%Yes
Hewlett Packard Enterprise →
HPE
United States$16.0bn0.038%-0.014 pp-0.051 pp-7.4%Yes
Western Digital →
WDC
United States$13.0bn0.031%-0.010 pp-0.042 pp-12.7%Yes
Seagate Technology →
STX
United States$15.6bn0.037%-0.021 pp-0.036 pp+22.3%Yes
NetApp →
NTAP
United States$14.8bn0.036%-0.011 pp-0.025 pp+29.7%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.