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 Software9.23%+2.66 ppApplication Software3.96%+0.91 ppSemiconductors4.03%+0.77 ppTechnology Hardware, Storage & Peripherals8.82%+0.66 ppIT Consulting & Other Services1.41%+0.17 ppSemiconductor Materials & Equipment0.51%+0.09 ppElectronic Equipment & Instruments0.35%-0.04 ppElectronic Manufacturing Services0.18%+0.04 ppCommunications Equipment0.86%-0.04 ppElectronic Components0.13%-0.01 ppInternet Services & Infrastructure0.12%-0.01 ppTechnology Distributors0.09%-0.00 pp
3 · Sub-industry
Inside IT Consulting & Other Services
IT Consulting & Other Services · weight
1.41%
Industry change · 12M
+0.17 pp
IT Consulting & Other Services · contribution
+0.175 pp
Company participation
100%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Jan 2024 · 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 | $167.7bn | 0.499% | +0.050 pp | +0.082 pp | +43.1% | Yes |
| Accenture → ACN | United States | $231.8bn | 0.689% | +0.046 pp | +0.081 pp | +32.4% | Yes |
| Gartner → IT | United States | $35.7bn | 0.106% | +0.017 pp | +0.015 pp | +35.3% | Yes |
| Cognizant → CTSH | United States | $38.7bn | 0.115% | +0.004 pp | -0.002 pp | +17.6% | 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.