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 Technology26.9%+26.90 ppHealth Care15.8%+15.74 ppIndustrials12.3%+12.31 ppConsumer Discretionary7.4%+7.35 ppConsumer Staples7.1%+7.09 ppCommunication Services4.5%+4.49 ppMaterials3.3%+3.27 ppReal Estate3.1%+3.13 ppUtilities3.0%+2.97 ppEnergy2.4%+2.40 ppFinancials14.3%-85.64 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals8.46%+8.46 ppSystems Software7.36%+7.35 ppApplication Software3.73%+3.73 ppSemiconductors3.52%+3.51 ppIT Consulting & Other Services1.31%+1.31 ppCommunications Equipment0.96%+0.96 ppSemiconductor Materials & Equipment0.59%+0.59 ppElectronic Equipment & Instruments0.43%+0.43 ppElectronic Components0.16%+0.16 ppElectronic Manufacturing Services0.16%+0.16 ppInternet Services & Infrastructure0.16%+0.16 ppTechnology Distributors0.09%+0.09 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.59%+0.588 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
+0.59 pp
Semiconductor Materials & Equipment · contribution
+0.588 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Applied Materials →
AMAT
United States$130.2bn0.459%+0.220 pp+0.459 pp+137.9%Yes
Teradyne →
TER
United States$22.3bn0.079%+0.039 pp+0.079 pp+59.1%Yes
Lam Research →
LRCX
United States$9.3bn0.033%+0.016 pp+0.033 pp+103.4%Yes
KLA Corporation →
KLAC
United States$5.0bn0.018%+0.008 pp+0.018 pp+69.0%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.