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 Software4.49%-2.69 ppTechnology Hardware, Storage & Peripherals5.94%-2.26 ppApplication Software1.63%-1.54 ppIT Consulting & Other Services0.57%-0.61 ppSemiconductor Materials & Equipment0.91%+0.36 ppSemiconductors10.63%+0.25 ppElectronic Components0.35%+0.16 ppElectronic Equipment & Instruments0.18%-0.12 ppInternet Services & Infrastructure0.07%-0.07 ppCommunications Equipment0.95%-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
5.94%
Industry change · 12M
-2.26 pp
Technology Hardware, Storage & Peripherals · contribution
-2.258 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 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 | $3725.9bn | 5.426% | -2.442 pp | -2.496 pp | +14.8% | No |
| Sandisk → SNDK | United States | $93.8bn | 0.137% | +0.068 pp | +0.137 pp | +1234.5% | Yes |
| Western Digital → WDC | United States | $91.7bn | 0.134% | +0.018 pp | +0.100 pp | +571.9% | Yes |
| Seagate Technology → STX | United States | $85.4bn | 0.124% | +0.009 pp | +0.082 pp | +367.1% | No |
| HP Inc. → HPQ | United States | $17.6bn | 0.026% | -0.014 pp | -0.036 pp | -27.1% | No |
| Supermicro → SMCI | United States | $13.6bn | 0.020% | -0.014 pp | -0.028 pp | -33.5% | No |
| NetApp → NTAP | United States | $20.2bn | 0.029% | -0.012 pp | -0.013 pp | +19.0% | No |
| Hewlett Packard Enterprise → HPE | United States | $31.6bn | 0.046% | -0.017 pp | -0.002 pp | +58.2% | 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.