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 Technology28.8%+2.60 ppConsumer Discretionary12.5%+1.60 ppIndustrials10.0%+0.17 ppEnergy3.5%-0.07 ppMaterials2.9%-0.09 ppReal Estate2.9%-0.37 ppHealth Care15.9%-0.60 ppCommunication Services2.8%-0.63 ppConsumer Staples7.1%-0.63 ppUtilities2.9%-0.75 ppFinancials10.7%-1.24 pp

2 · Industry

Inside Information Technology

Systems Software8.15%+0.92 ppApplication Software3.83%+0.83 ppSemiconductors3.59%+0.33 ppTechnology Hardware, Storage & Peripherals9.66%+0.30 ppSemiconductor Materials & Equipment0.51%+0.14 ppCommunications Equipment0.97%+0.10 ppElectronic Equipment & Instruments0.35%-0.02 ppIT Consulting & Other Services1.29%+0.02 ppElectronic Manufacturing Services0.13%-0.01 ppElectronic Components0.13%-0.01 ppTechnology Distributors0.09%+0.01 ppInternet Services & Infrastructure0.12%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.51%+0.136 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.51%
Industry change · 12M
+0.14 pp
Semiconductor Materials & Equipment · contribution
+0.136 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$127.8bn0.407%+0.131 pp+0.118 pp+63.9%Yes
Lam Research →
LRCX
United States$9.3bn0.030%+0.009 pp+0.008 pp+62.7%Yes
Teradyne →
TER
United States$16.6bn0.053%+0.015 pp+0.005 pp+28.0%Yes
KLA Corporation →
KLAC
United States$6.9bn0.022%+0.007 pp+0.004 pp+47.7%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.