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

Information Technology27.2%+9.30 ppHealth Care16.9%+0.36 ppMaterials3.2%-0.04 ppConsumer Discretionary6.8%-0.33 ppCommunication Services4.9%-0.41 ppUtilities3.4%-0.47 ppConsumer Staples8.5%-0.55 ppReal Estate3.2%-0.60 ppIndustrials11.8%-1.61 ppEnergy1.6%-1.86 ppFinancials12.5%-3.80 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals9.08%+7.18 ppSystems Software7.41%+1.62 ppApplication Software3.82%+0.75 ppCommunications Equipment0.89%-0.36 ppElectronic Equipment & Instruments0.40%+0.12 ppIT Consulting & Other Services1.34%-0.12 ppSemiconductor Materials & Equipment0.36%+0.07 ppSemiconductors3.33%+0.07 ppInternet Services & Infrastructure0.18%-0.01 ppTechnology Distributors0.08%-0.01 ppElectronic Manufacturing Services0.15%-0.01 ppElectronic Components0.14%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.36%+0.067 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.36%
Industry change · 12M
+0.07 pp
Semiconductor Materials & Equipment · contribution
+0.067 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2020 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Teradyne →
TER
United States$14.6bn0.069%+0.069 pp+0.069 pp+44.3%Yes
Applied Materials →
AMAT
United States$54.1bn0.256%+0.256 pp-0.005 pp+10.7%Yes
Lam Research →
LRCX
United States$4.9bn0.023%+0.023 pp+0.003 pp+28.5%Yes
KLA Corporation →
KLAC
United States$3.0bn0.014%+0.014 pp+0.001 pp+18.9%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.