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 Technology28.3%+1.04 ppFinancials11.9%+0.79 ppConsumer Discretionary12.0%+0.65 ppIndustrials10.6%+0.56 ppConsumer Staples7.5%-0.03 ppMaterials2.9%-0.23 ppEnergy3.3%-0.30 ppReal Estate2.7%-0.32 ppCommunication Services2.8%-0.43 ppUtilities2.7%-0.60 ppHealth Care15.4%-1.13 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals7.61%-1.58 ppSystems Software9.07%+1.47 ppSemiconductors4.31%+0.69 ppApplication Software3.77%+0.45 ppCommunications Equipment0.82%-0.15 ppSemiconductor Materials & Equipment0.58%+0.13 ppIT Consulting & Other Services1.30%+0.08 ppElectronic Equipment & Instruments0.34%-0.04 ppElectronic Manufacturing Services0.17%+0.03 ppInternet Services & Infrastructure0.10%-0.02 ppElectronic Components0.13%-0.02 ppTechnology Distributors0.10%+0.01 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.58%+0.130 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.58%
Industry change · 12M
+0.13 pp
Semiconductor Materials & Equipment · contribution
+0.130 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$171.4bn0.475%+0.074 pp+0.121 pp+69.3%Yes
Lam Research →
LRCX
United States$12.7bn0.035%+0.005 pp+0.011 pp+85.2%Yes
Teradyne →
TER
United States$17.3bn0.048%-0.002 pp-0.009 pp+5.4%Yes
KLA Corporation →
KLAC
United States$9.4bn0.026%+0.003 pp+0.007 pp+77.0%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.