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
Systems Software5.64%+0.82 ppTechnology Hardware, Storage & Peripherals1.76%-0.26 ppSemiconductors3.17%-0.22 ppApplication Software3.19%+0.18 ppCommunications Equipment1.46%+0.13 ppElectronic Equipment & Instruments0.29%+0.11 ppIT Consulting & Other Services1.59%-0.10 ppSemiconductor Materials & Equipment0.27%-0.04 ppInternet Services & Infrastructure0.21%+0.03 ppElectronic Components0.15%-0.03 ppElectronic Manufacturing Services0.17%-0.02 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
1.59%
Industry change · 12M
-0.10 pp
IT Consulting & Other Services · contribution
-0.095 pp
Company participation
50%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 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 |
|---|---|---|---|---|---|---|---|
| Cognizant → CTSH | United States | $37.1bn | 0.197% | -0.036 pp | -0.081 pp | -19.1% | No |
| IBM → IBM | United States | $125.5bn | 0.668% | +0.006 pp | -0.070 pp | +7.2% | Yes |
| Accenture → ACN | United States | $122.7bn | 0.653% | +0.004 pp | +0.061 pp | +23.0% | Yes |
| Gartner → IT | United States | $12.6bn | 0.067% | -0.013 pp | -0.005 pp | +2.9% | 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.