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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Information Technology
Semiconductors14.10%+4.00 ppTechnology Hardware, Storage & Peripherals7.49%-1.23 ppSystems Software8.37%+0.47 ppCommunications Equipment1.12%+0.36 ppIT Consulting & Other Services0.93%-0.23 ppSemiconductor Materials & Equipment0.59%+0.09 ppElectronic Components0.26%+0.07 ppApplication Software3.38%+0.06 ppElectronic Equipment & Instruments0.26%-0.04 ppElectronic Manufacturing Services0.17%+0.03 ppTechnology Distributors0.04%-0.03 ppInternet Services & Infrastructure0.12%-0.02 pp
3 · Sub-industry
Inside Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
7.49%
Industry change · 12M
-1.23 pp
Technology Hardware, Storage & Peripherals · contribution
-1.227 pp
Company participation
86%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2025 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| Apple Inc. → AAPL | United States | $3445.1bn | 7.142% | +0.344 pp | -1.271 pp | +1.8% | Yes |
| Supermicro → SMCI | United States | $24.7bn | 0.051% | -0.003 pp | +0.045 pp | -5.1% | No |
| HP Inc. → HPQ | United States | $26.7bn | 0.055% | +0.002 pp | -0.029 pp | -18.1% | Yes |
| Seagate Technology → STX | United States | $35.6bn | 0.074% | +0.017 pp | +0.023 pp | +72.9% | Yes |
| Western Digital → WDC | United States | $27.9bn | 0.058% | +0.017 pp | +0.017 pp | +62.4% | Yes |
| NetApp → NTAP | United States | $22.5bn | 0.047% | +0.001 pp | -0.013 pp | -4.7% | Yes |
| Hewlett Packard Enterprise → HPE | United States | $29.6bn | 0.061% | +0.010 pp | +0.001 pp | +19.9% | 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.