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
Semiconductors15.05%+3.50 ppApplication Software2.91%-0.61 ppTechnology Hardware, Storage & Peripherals8.57%+0.37 ppSystems Software7.72%+0.34 ppSemiconductor Materials & Equipment0.90%+0.31 ppCommunications Equipment1.07%+0.26 ppIT Consulting & Other Services0.99%-0.16 ppElectronic Components0.31%+0.12 ppElectronic Equipment & Instruments0.23%-0.06 ppElectronic Manufacturing Services0.17%+0.04 ppInternet Services & Infrastructure0.11%-0.03 ppTechnology Distributors0.04%-0.01 pp
3 · Sub-industry
Inside Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
8.57%
Industry change · 12M
+0.37 pp
Technology Hardware, Storage & Peripherals · contribution
+0.367 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Nov 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 | $4120.4bn | 8.094% | +0.952 pp | +0.177 pp | +18.0% | Yes |
| Seagate Technology → STX | United States | $59.1bn | 0.116% | +0.042 pp | +0.069 pp | +179.7% | Yes |
| Western Digital → WDC | United States | $55.8bn | 0.110% | +0.052 pp | +0.068 pp | +196.9% | Yes |
| Sandisk → SNDK | United States | $32.7bn | 0.064% | +0.064 pp | +0.064 pp | +0.0% | Yes |
| Supermicro → SMCI | United States | $20.2bn | 0.040% | -0.011 pp | +0.035 pp | +3.7% | No |
| HP Inc. → HPQ | United States | $22.8bn | 0.045% | -0.010 pp | -0.031 pp | -28.3% | No |
| NetApp → NTAP | United States | $22.1bn | 0.043% | -0.003 pp | -0.012 pp | -7.2% | No |
| Hewlett Packard Enterprise → HPE | United States | $28.9bn | 0.057% | -0.005 pp | -0.004 pp | +5.9% | 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.