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
Semiconductors17.20%+2.80 ppTechnology Hardware, Storage & Peripherals9.09%+2.20 ppSystems Software7.02%-1.93 ppApplication Software1.80%-1.89 ppSemiconductor Materials & Equipment1.53%+0.91 ppCommunications Equipment1.55%+0.46 ppIT Consulting & Other Services0.62%-0.37 ppElectronic Components0.47%+0.22 ppElectronic Manufacturing Services0.23%+0.06 ppElectronic Equipment & Instruments0.24%-0.03 ppInternet Services & Infrastructure0.09%-0.03 ppTechnology Distributors0.03%-0.02 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
0.62%
Industry change · 12M
-0.37 pp
IT Consulting & Other Services · contribution
-0.369 pp
Company participation
75%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2026 · 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 | $105.7bn | 0.184% | +0.030 pp | -0.174 pp | -36.6% | Yes |
| IBM → IBM | United States | $210.7bn | 0.368% | +0.073 pp | -0.129 pp | -9.4% | No |
| Gartner → IT | United States | $10.1bn | 0.018% | +0.003 pp | -0.037 pp | -55.4% | Yes |
| Cognizant → CTSH | United States | $26.2bn | 0.046% | +0.012 pp | -0.028 pp | -21.2% | 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.