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 Software5.60%+0.92 ppSemiconductors2.97%-0.68 ppTechnology Hardware, Storage & Peripherals1.64%-0.44 ppIT Consulting & Other Services1.57%-0.12 ppApplication Software3.24%+0.12 ppElectronic Equipment & Instruments0.29%+0.12 ppCommunications Equipment1.49%+0.11 ppSemiconductor Materials & Equipment0.24%-0.11 ppInternet Services & Infrastructure0.21%+0.05 ppElectronic Manufacturing Services0.17%-0.03 ppElectronic Components0.15%-0.01 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
1.57%
Industry change · 12M
-0.12 pp
IT Consulting & Other Services · contribution
-0.124 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
May 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 |
|---|---|---|---|---|---|---|---|
| IBM → IBM | United States | $107.6bn | 0.627% | -0.054 pp | -0.126 pp | -5.8% | Yes |
| Cognizant → CTSH | United States | $35.3bn | 0.205% | -0.031 pp | -0.063 pp | -16.9% | Yes |
| Accenture → ACN | United States | $113.4bn | 0.661% | +0.065 pp | +0.059 pp | +16.3% | Yes |
| Gartner → IT | United States | $13.6bn | 0.079% | +0.005 pp | +0.006 pp | +14.0% | 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.