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

Consumer Discretionary11.6%+3.82 pp Energy4.1%+1.64 pp Health Care17.5%+1.01 pp Consumer Staples7.7%+0.70 pp Utilities3.4%+0.36 pp Real Estate3.1%-0.10 pp Materials2.9%-0.29 pp Industrials9.8%-0.41 pp Communication Services3.3%-0.64 pp Financials12.1%-2.06 pp Information Technology24.5%-4.05 pp

2 · Industry

Inside Information Technology

Systems Software6.41%-2.09 pp Application Software2.90%-1.33 pp Semiconductors2.86%-0.55 pp Technology Hardware, Storage & Peripherals8.94%+0.38 pp Semiconductor Materials & Equipment0.35%-0.18 pp Communications Equipment0.87%-0.11 pp IT Consulting & Other Services1.28%-0.07 pp Electronic Equipment & Instruments0.38%-0.06 pp Electronic Manufacturing Services0.14%-0.02 pp Internet Services & Infrastructure0.13%-0.01 pp Electronic Components0.14%-0.00 pp Technology Distributors0.08%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.35%-0.183 pp

Concentrated

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

View all contributions →

Semiconductor Materials & Equipment · weight

0.35%

Industry change · 12M

-0.18 pp

Semiconductor Materials & Equipment · contribution

-0.183 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2022 · sorted by absolute contribution to 12-month change

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
Applied Materials → AMAT	United States	$76.0bn	0.270%	-0.047 pp	-0.143 pp	-34.8%	No
Teradyne → TER	United States	$12.8bn	0.045%	-0.010 pp	-0.031 pp	-40.9%	No
Lam Research → LRCX	United States	$5.5bn	0.020%	-0.004 pp	-0.007 pp	-27.3%	No
KLA Corporation → KLAC	United States	$4.5bn	0.016%	-0.004 pp	-0.003 pp	-14.1%	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.