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
Universe›Information Technology›Electronic Components›Electronic Components

1 · Sector

Weight and 12M allocation change

Information Technology41.0%+4.61 ppIndustrials10.3%+0.34 ppEnergy2.4%+0.09 ppMaterials2.1%-0.14 ppUtilities2.5%-0.22 ppReal Estate2.0%-0.28 ppConsumer Discretionary11.2%-0.41 ppHealth Care10.4%-0.48 ppCommunication Services2.2%-0.51 ppConsumer Staples5.7%-1.01 ppFinancials10.3%-1.99 pp

2 · Industry

Inside Information Technology

Semiconductors18.72%+5.18 ppSystems Software5.78%-2.86 ppTechnology Hardware, Storage & Peripherals8.95%+2.01 ppApplication Software1.78%-1.78 ppSemiconductor Materials & Equipment2.20%+1.56 ppCommunications Equipment1.57%+0.52 ppIT Consulting & Other Services0.64%-0.51 ppElectronic Components0.70%+0.48 ppElectronic Manufacturing Services0.28%+0.12 ppInternet Services & Infrastructure0.09%-0.05 ppElectronic Equipment & Instruments0.24%-0.04 ppTechnology Distributors0.03%-0.02 pp

3 · Sub-industry

Inside Electronic Components

Electronic Components0.70%+0.479 pp
Concentrated

Most of this industry's gains came from a few companies.

View all contributions →
Electronic Components · weight
0.70%
Industry change · 12M
+0.48 pp
Electronic Components · contribution
+0.479 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2026 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Corning Inc. →
GLW
United States$219.8bn0.382%+0.212 pp+0.285 pp+391.0%Yes
Coherent Corp. →
COHR
United States$77.2bn0.134%+0.069 pp+0.134 pp+342.2%Yes
Amphenol →
APH
United States$108.5bn0.188%+0.075 pp+0.060 pp+79.8%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.