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
Application Software3.00%-1.02 ppTechnology Hardware, Storage & Peripherals9.35%+0.59 ppSystems Software7.23%-0.53 ppSemiconductors3.26%-0.24 ppSemiconductor Materials & Equipment0.38%-0.15 ppCommunications Equipment0.87%-0.14 ppElectronic Equipment & Instruments0.38%-0.08 ppIT Consulting & Other Services1.27%-0.07 ppInternet Services & Infrastructure0.12%-0.02 ppElectronic Manufacturing Services0.14%-0.02 ppTechnology Distributors0.08%-0.01 ppElectronic Components0.14%-0.01 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
1.27%
Industry change · 12M
-0.07 pp
IT Consulting & Other Services · contribution
-0.069 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Aug 2022 · 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 |
|---|---|---|---|---|---|---|---|
| Accenture → ACN | United States | $183.8bn | 0.658% | -0.027 pp | -0.059 pp | -13.3% | No |
| Cognizant → CTSH | United States | $32.7bn | 0.117% | -0.023 pp | -0.017 pp | -16.1% | No |
| IBM → IBM | United States | $116.0bn | 0.415% | -0.035 pp | +0.013 pp | +0.6% | No |
| Gartner → IT | United States | $22.6bn | 0.081% | +0.005 pp | -0.006 pp | -7.6% | 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.