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›Semiconductor Materials & Equipment›Semiconductor Materials & Equipment

1 · Sector

Weight and 12M allocation change

Consumer Discretionary11.0%+3.61 ppHealth Care17.7%+1.59 ppEnergy3.6%+1.22 ppConsumer Staples7.8%+0.78 ppUtilities3.5%+0.51 ppReal Estate3.3%+0.14 ppMaterials3.0%-0.15 ppCommunication Services3.3%-1.01 ppInformation Technology25.3%-2.16 ppIndustrials9.6%-2.22 ppFinancials12.0%-2.30 pp

2 · Industry

Inside Information Technology

Application Software2.82%-1.14 ppSystems Software7.08%-0.53 ppTechnology Hardware, Storage & Peripherals9.01%+0.44 ppSemiconductors3.07%-0.44 ppSemiconductor Materials & Equipment0.36%-0.16 ppCommunications Equipment0.86%-0.13 ppIT Consulting & Other Services1.27%-0.09 ppElectronic Equipment & Instruments0.38%-0.06 ppElectronic Manufacturing Services0.14%-0.02 ppInternet Services & Infrastructure0.12%-0.02 ppElectronic Components0.14%-0.01 ppTechnology Distributors0.08%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.36%-0.158 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.36%
Industry change · 12M
-0.16 pp
Semiconductor Materials & Equipment · contribution
-0.158 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$70.5bn0.277%-0.031 pp-0.131 pp-35.8%No
Teradyne →
TER
United States$11.8bn0.046%-0.009 pp-0.017 pp-30.9%No
Lam Research →
LRCX
United States$5.0bn0.020%-0.003 pp-0.009 pp-34.9%No
KLA Corporation →
KLAC
United States$4.3bn0.017%-0.002 pp-0.001 pp-8.4%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.