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

Materials33.4%+3.81 ppIndustrials7.3%+0.36 ppFinancials8.1%+0.32 ppConsumer Staples5.3%-0.02 ppEnergy2.2%-0.17 ppUtilities2.1%-0.18 ppCommunication Services1.9%-0.26 ppReal Estate1.8%-0.32 ppConsumer Discretionary7.9%-0.56 ppHealth Care10.3%-1.48 ppInformation Technology19.7%-1.49 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals5.83%-1.26 ppSemiconductors3.11%+0.43 ppApplication Software2.30%-0.31 ppIT Consulting & Other Services0.76%-0.15 ppCommunications Equipment0.54%-0.13 ppSystems Software6.16%-0.09 ppSemiconductor Materials & Equipment0.43%+0.07 ppElectronic Equipment & Instruments0.22%-0.05 ppInternet Services & Infrastructure0.06%-0.03 ppElectronic Manufacturing Services0.12%+0.02 ppElectronic Components0.10%+0.01 ppTechnology Distributors0.06%+0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.43%+0.075 pp
Concentrated

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

View all contributions →
Semiconductor Materials & Equipment · weight
0.43%
Industry change · 12M
+0.07 pp
Semiconductor Materials & Equipment · contribution
+0.075 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$178.1bn0.340%-0.140 pp+0.064 pp+62.6%No
KLA Corporation →
KLAC
United States$10.2bn0.020%-0.007 pp+0.005 pp+73.1%No
Teradyne →
TER
United States$22.0bn0.042%-0.003 pp+0.004 pp+41.3%No
Lam Research →
LRCX
United States$12.2bn0.023%-0.012 pp+0.003 pp+52.8%No

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.