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

Industrials10.8%+1.00 ppConsumer Discretionary12.0%+1.00 ppFinancials11.9%+0.68 ppInformation Technology27.8%+0.62 ppConsumer Staples7.8%+0.06 ppMaterials2.9%-0.19 ppEnergy3.3%-0.23 ppReal Estate2.6%-0.43 ppCommunication Services2.7%-0.45 ppUtilities2.9%-0.48 ppHealth Care15.3%-1.58 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals7.88%-1.46 ppSemiconductors4.19%+0.87 ppSystems Software8.78%+0.79 ppApplication Software3.59%+0.33 ppSemiconductor Materials & Equipment0.59%+0.18 ppCommunications Equipment0.80%-0.09 ppElectronic Manufacturing Services0.17%+0.04 ppElectronic Equipment & Instruments0.33%-0.03 ppInternet Services & Infrastructure0.09%-0.03 ppTechnology Distributors0.09%+0.02 ppIT Consulting & Other Services1.18%+0.01 ppElectronic Components0.14%+0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.59%+0.178 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.59%
Industry change · 12M
+0.18 pp
Semiconductor Materials & Equipment · contribution
+0.178 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2024 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$165.1bn0.478%+0.072 pp+0.155 pp+77.3%Yes
Lam Research →
LRCX
United States$11.7bn0.034%+0.002 pp+0.010 pp+72.5%Yes
KLA Corporation →
KLAC
United States$9.3bn0.027%+0.003 pp+0.009 pp+80.3%Yes
Teradyne →
TER
United States$17.8bn0.052%+0.008 pp+0.003 pp+27.9%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.