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
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Information Technology
Technology Hardware, Storage & Peripherals7.88%-1.46 ppSemiconductors4.19%+0.87 ppSystems Software8.78%+0.79 ppApplication Software3.59%+0.33 ppSemiconductor Materials & Equipment0.59%+0.18 ppCommunications Equipment0.80%-0.09 ppElectronic Manufacturing Services0.17%+0.04 ppElectronic Equipment & Instruments0.33%-0.03 ppInternet Services & Infrastructure0.09%-0.03 ppTechnology Distributors0.09%+0.02 ppIT Consulting & Other Services1.18%+0.01 ppElectronic Components0.14%+0.00 pp
3 · Sub-industry
Inside Systems Software
Systems Software · weight
8.78%
Industry change · 12M
+0.79 pp
Systems Software · contribution
+0.791 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Apr 2024 · 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 |
|---|---|---|---|---|---|---|---|
| Microsoft → MSFT | United States | $2893.6bn | 8.380% | -0.403 pp | +0.664 pp | +27.8% | No |
| Palo Alto Networks → PANW | United States | $47.0bn | 0.136% | -0.023 pp | +0.136 pp | +59.4% | No |
| Fortinet → FTNT | United States | $48.2bn | 0.140% | -0.008 pp | -0.027 pp | +0.2% | No |
| ServiceNow → NOW | United States | $28.4bn | 0.082% | -0.011 pp | +0.019 pp | +50.9% | No |
| Gen Digital → GEN | United States | $12.8bn | 0.037% | -0.008 pp | -0.001 pp | +17.0% | 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.