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 & Peripherals6.94%-2.37 ppSystems Software5.74%-1.60 ppSemiconductors2.61%-0.85 ppApplication Software2.56%-0.58 ppIT Consulting & Other Services0.86%-0.41 ppCommunications Equipment0.61%-0.23 ppElectronic Equipment & Instruments0.25%-0.14 ppSemiconductor Materials & Equipment0.35%-0.06 ppElectronic Components0.09%-0.05 ppElectronic Manufacturing Services0.10%-0.05 ppInternet Services & Infrastructure0.08%-0.04 ppTechnology Distributors0.05%-0.03 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
0.86%
Industry change · 12M
-0.41 pp
IT Consulting & Other Services · contribution
-0.411 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jul 2023 · 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 | $201.5bn | 0.439% | -0.164 pp | -0.231 pp | +5.0% | No |
| IBM → IBM | United States | $131.3bn | 0.286% | -0.101 pp | -0.120 pp | +15.9% | No |
| Cognizant → CTSH | United States | $33.5bn | 0.073% | -0.030 pp | -0.048 pp | -1.1% | No |
| Gartner → IT | United States | $27.9bn | 0.061% | -0.020 pp | -0.013 pp | +33.2% | 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.