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%+2.44 ppSemiconductors4.26%+0.94 ppApplication Software3.89%+0.89 ppTechnology Hardware, Storage & Peripherals8.24%-0.26 ppIT Consulting & Other Services1.39%+0.18 ppSemiconductor Materials & Equipment0.59%+0.15 ppCommunications Equipment0.81%-0.11 ppElectronic Equipment & Instruments0.34%-0.04 ppElectronic Manufacturing Services0.18%+0.04 ppElectronic Components0.13%-0.02 ppInternet Services & Infrastructure0.10%-0.01 ppTechnology Distributors0.09%-0.00 pp
3 · Sub-industry
Inside Communications Equipment
Communications Equipment · weight
0.81%
Industry change · 12M
-0.11 pp
Communications Equipment · contribution
-0.107 pp
Company participation
25%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Feb 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 |
|---|---|---|---|---|---|---|---|
| Cisco → CSCO | United States | $195.9bn | 0.561% | -0.052 pp | -0.136 pp | +2.9% | No |
| Arista Networks → ANET | United States | $21.7bn | 0.062% | +0.009 pp | +0.025 pp | +100.1% | Yes |
| Motorola Solutions → MSI | United States | $54.9bn | 0.157% | -0.010 pp | +0.003 pp | +27.3% | No |
| F5, Inc. → FFIV | United States | $11.0bn | 0.032% | -0.000 pp | +0.001 pp | +30.9% | 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.