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 & Peripherals8.46%+8.46 ppSystems Software7.36%+7.35 ppApplication Software3.73%+3.73 ppSemiconductors3.52%+3.51 ppIT Consulting & Other Services1.31%+1.31 ppCommunications Equipment0.96%+0.96 ppSemiconductor Materials & Equipment0.59%+0.59 ppElectronic Equipment & Instruments0.43%+0.43 ppElectronic Components0.16%+0.16 ppElectronic Manufacturing Services0.16%+0.16 ppInternet Services & Infrastructure0.16%+0.16 ppTechnology Distributors0.09%+0.09 pp
3 · Sub-industry
Inside Systems Software
Systems Software · weight
7.36%
Industry change · 12M
+7.35 pp
Systems Software · contribution
+7.354 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jun 2021 · 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 | $2040.3bn | 7.203% | +3.726 pp | +7.195 pp | +34.4% | Yes |
| ServiceNow → NOW | United States | $21.7bn | 0.077% | +0.038 pp | +0.077 pp | +35.7% | Yes |
| Gen Digital → GEN | United States | $15.8bn | 0.056% | +0.032 pp | +0.056 pp | +40.4% | Yes |
| Fortinet → FTNT | United States | $7.8bn | 0.027% | +0.016 pp | +0.027 pp | +73.5% | 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.