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
Semiconductors12.22%+9.11 ppSystems Software8.36%+2.20 ppTechnology Hardware, Storage & Peripherals7.10%+1.27 ppApplication Software3.35%+1.05 ppCommunications Equipment1.01%+0.47 ppIT Consulting & Other Services1.17%+0.41 ppSemiconductor Materials & Equipment0.57%+0.15 ppElectronic Components0.22%+0.12 ppInternet Services & Infrastructure0.14%+0.08 ppElectronic Equipment & Instruments0.29%+0.06 ppElectronic Manufacturing Services0.15%+0.03 ppTechnology Distributors0.05%-0.00 pp
3 · Sub-industry
Inside Technology Hardware, Storage & Peripherals
Technology Hardware, Storage & Peripherals · weight
7.10%
Industry change · 12M
+1.27 pp
Technology Hardware, Storage & Peripherals · contribution
+1.265 pp
Company participation
43%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 | $2999.9bn | 6.797% | -1.327 pp | +1.162 pp | +5.0% | No |
| Supermicro → SMCI | United States | $23.9bn | 0.054% | -0.001 pp | +0.045 pp | -49.0% | Yes |
| NetApp → NTAP | United States | $20.2bn | 0.046% | +0.000 pp | +0.041 pp | -16.1% | No |
| Seagate Technology → STX | United States | $25.0bn | 0.057% | +0.008 pp | +0.019 pp | +30.2% | Yes |
| HP Inc. → HPQ | United States | $23.4bn | 0.053% | -0.012 pp | -0.015 pp | -29.4% | No |
| Hewlett Packard Enterprise → HPE | United States | $22.7bn | 0.051% | -0.007 pp | +0.008 pp | +0.6% | No |
| Western Digital → WDC | United States | $18.0bn | 0.041% | +0.003 pp | +0.005 pp | -9.4% | 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.