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 Software5.73%+2.89 ppSemiconductors3.19%+1.32 ppApplication Software3.11%+1.30 ppIT Consulting & Other Services1.55%+0.60 ppTechnology Hardware, Storage & Peripherals1.81%+0.58 ppCommunications Equipment1.31%+0.50 ppElectronic Equipment & Instruments0.29%+0.20 ppSemiconductor Materials & Equipment0.28%+0.14 ppInternet Services & Infrastructure0.20%+0.10 ppTechnology Distributors0.09%+0.09 ppElectronic Manufacturing Services0.17%+0.07 ppElectronic Components0.14%+0.03 pp
3 · Sub-industry
Inside Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
1.81%
Industry change · 12M
+0.58 pp
Technology Hardware, Storage & Peripherals · contribution
+0.582 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Sep 2019 · 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 | $253.0bn | 1.344% | +0.117 pp | +0.476 pp | +0.8% | Yes |
| Seagate Technology → STX | United States | $14.5bn | 0.077% | +0.007 pp | +0.034 pp | +20.2% | Yes |
| Western Digital → WDC | United States | $13.3bn | 0.071% | +0.014 pp | +0.030 pp | +5.6% | Yes |
| Hewlett Packard Enterprise → HPE | United States | $19.8bn | 0.105% | -0.003 pp | +0.029 pp | -4.1% | No |
| HP Inc. → HPQ | United States | $28.0bn | 0.149% | -0.020 pp | +0.019 pp | -24.2% | No |
| NetApp → NTAP | United States | $12.5bn | 0.066% | -0.013 pp | -0.005 pp | -37.3% | 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.