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

Health Care17.4%+1.93 pp Energy3.5%+1.25 pp Information Technology27.4%+1.16 pp Consumer Staples8.2%+1.08 pp Real Estate3.5%+0.45 pp Utilities3.5%+0.28 pp Materials3.4%+0.03 pp Consumer Discretionary6.9%-0.64 pp Communication Services3.6%-1.08 pp Financials12.4%-2.12 pp Industrials10.2%-2.35 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals9.61%+1.23 pp Systems Software7.66%+0.63 pp Application Software3.07%-0.48 pp Semiconductor Materials & Equipment0.45%-0.11 pp Semiconductors3.39%-0.07 pp IT Consulting & Other Services1.36%+0.04 pp Electronic Components0.15%-0.03 pp Internet Services & Infrastructure0.14%-0.02 pp Electronic Manufacturing Services0.15%-0.02 pp Technology Distributors0.08%-0.01 pp Communications Equipment0.93%-0.01 pp Electronic Equipment & Instruments0.42%-0.01 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.45%-0.112 pp

Concentrated

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

View all contributions →

Semiconductor Materials & Equipment · weight

0.45%

Industry change · 12M

-0.11 pp

Semiconductor Materials & Equipment · contribution

-0.112 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 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	$97.5bn	0.352%	-0.060 pp	-0.089 pp	-16.3%	No
Teradyne → TER	United States	$17.1bn	0.062%	-0.002 pp	-0.014 pp	-15.4%	No
Lam Research → LRCX	United States	$6.5bn	0.023%	-0.005 pp	-0.009 pp	-24.2%	No
KLA Corporation → KLAC	United States	$4.8bn	0.017%	-0.003 pp	-0.000 pp	+2.4%	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.