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
8.15%
Industry change · 12M
-0.66 pp
Technology Hardware, Storage & Peripherals · contribution
-0.664 pp
Company participation
14%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Apple Inc. →
AAPL
United States$3545.2bn7.883%-0.190 pp-0.644 pp+28.6%No
HP Inc. →
HPQ
United States$30.5bn0.068%-0.013 pp-0.017 pp+17.0%No
Seagate Technology →
STX
United States$20.4bn0.045%-0.005 pp-0.008 pp+15.8%No
Supermicro →
SMCI
United States$1.7bn0.004%-0.000 pp+0.004 pp-46.1%No
Western Digital →
WDC
United States$17.1bn0.038%-0.002 pp-0.004 pp+13.8%No
Hewlett Packard Enterprise →
HPE
United States$27.9bn0.062%+0.002 pp+0.003 pp+42.3%Yes
NetApp →
NTAP
United States$24.8bn0.055%-0.000 pp+0.002 pp+42.5%No

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.