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
Semiconductors1.78%-1.44 ppSystems Software2.83%-1.44 ppApplication Software1.75%-1.03 ppIT Consulting & Other Services0.86%-0.88 ppCommunications Equipment0.82%-0.50 ppTechnology Hardware, Storage & Peripherals1.24%-0.45 ppSemiconductor Materials & Equipment0.12%-0.23 ppElectronic Manufacturing Services0.09%-0.12 ppElectronic Components0.10%-0.08 ppElectronic Equipment & Instruments0.10%-0.06 ppInternet Services & Infrastructure0.10%-0.03 ppTechnology Distributors0.00%+0.00 pp
3 · Sub-industry
Inside Technology Distributors
Technology Distributors · weight
0.00%
Industry change · 12M
+0.00 pp
undefined · contribution
+0.000 pp
Company participation
0%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Oct 2018 · 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 |
|---|
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.