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
Systems Software4.46%-2.74 ppTechnology Hardware, Storage & Peripherals5.82%-2.61 ppApplication Software1.57%-1.73 ppSemiconductors10.39%-0.75 ppIT Consulting & Other Services0.55%-0.65 ppSemiconductor Materials & Equipment0.94%+0.37 ppCommunications Equipment0.86%-0.18 ppElectronic Components0.30%+0.11 ppElectronic Equipment & Instruments0.18%-0.11 ppInternet Services & Infrastructure0.06%-0.07 ppTechnology Distributors0.02%-0.03 ppElectronic Manufacturing Services0.13%-0.01 pp
3 · Sub-industry
Inside Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
5.82%
Industry change · 12M
-2.61 pp
Technology Hardware, Storage & Peripherals · contribution
-2.614 pp
Company participation
38%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 2026 · 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 | $3878.5bn | 5.323% | -2.770 pp | -2.801 pp | +9.7% | No |
| Sandisk → SNDK | United States | $93.8bn | 0.129% | +0.064 pp | +0.129 pp | +1256.2% | Yes |
| Western Digital → WDC | United States | $94.8bn | 0.130% | +0.020 pp | +0.092 pp | +473.8% | Yes |
| Seagate Technology → STX | United States | $88.9bn | 0.122% | +0.006 pp | +0.074 pp | +308.0% | Yes |
| HP Inc. → HPQ | United States | $17.4bn | 0.024% | -0.021 pp | -0.041 pp | -35.8% | No |
| Supermicro → SMCI | United States | $19.4bn | 0.027% | -0.013 pp | -0.028 pp | -21.9% | No |
| Hewlett Packard Enterprise → HPE | United States | $28.7bn | 0.039% | -0.017 pp | -0.019 pp | +11.3% | No |
| NetApp → NTAP | United States | $19.5bn | 0.027% | -0.017 pp | -0.019 pp | +1.3% | 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.