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 Technology27.3%+27.25 ppHealth Care16.4%+16.43 ppIndustrials12.2%+12.14 ppConsumer Discretionary7.3%+7.28 ppConsumer Staples7.1%+7.13 ppCommunication Services4.4%+4.36 ppMaterials3.3%+3.25 ppReal Estate3.2%+3.19 ppUtilities3.0%+3.01 ppEnergy2.1%+2.14 ppFinancials13.7%-86.17 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals8.63%+8.63 ppSystems Software7.50%+7.49 ppApplication Software3.84%+3.84 ppSemiconductors3.43%+3.43 ppIT Consulting & Other Services1.32%+1.32 ppCommunications Equipment0.98%+0.98 ppSemiconductor Materials & Equipment0.56%+0.56 ppElectronic Equipment & Instruments0.44%+0.44 ppElectronic Manufacturing Services0.17%+0.17 ppElectronic Components0.16%+0.16 ppInternet Services & Infrastructure0.15%+0.15 ppTechnology Distributors0.09%+0.09 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.56%+0.560 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.56%
Industry change · 12M
+0.56 pp
Semiconductor Materials & Equipment · contribution
+0.560 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jul 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$127.9bn0.439%-0.003 pp+0.438 pp+119.7%Yes
Teradyne →
TER
United States$21.1bn0.072%-0.003 pp+0.072 pp+43.3%Yes
Lam Research →
LRCX
United States$9.1bn0.031%-0.001 pp+0.031 pp+70.8%Yes
KLA Corporation →
KLAC
United States$5.3bn0.018%+0.001 pp+0.018 pp+76.7%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.