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
8.43%
Industry change · 12M
+0.20 pp
Technology Hardware, Storage & Peripherals · contribution
+0.198 pp
Company participation
29%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Apple Inc. →
AAPL
United States$3632.9bn8.125%+0.208 pp+0.127 pp+34.4%No
Supermicro →
SMCI
United States$24.6bn0.055%+0.051 pp+0.055 pp-52.1%Yes
NetApp →
NTAP
United States$20.3bn0.045%-0.010 pp+0.040 pp+14.0%No
HP Inc. →
HPQ
United States$29.1bn0.065%-0.010 pp-0.015 pp+12.6%No
Seagate Technology →
STX
United States$21.6bn0.048%+0.001 pp-0.008 pp+12.7%Yes
Western Digital →
WDC
United States$17.0bn0.038%-0.004 pp-0.004 pp+8.9%No
Hewlett Packard Enterprise →
HPE
United States$26.1bn0.058%-0.003 pp+0.002 pp+33.6%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.