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 Discretionary11.0%+3.71 pp Energy3.4%+1.21 pp Utilities3.5%+0.44 pp Health Care16.9%+0.44 pp Consumer Staples7.5%+0.40 pp Real Estate3.3%+0.12 pp Materials3.0%-0.22 pp Information Technology26.7%-0.60 pp Communication Services3.4%-0.97 pp Financials11.7%-2.06 pp Industrials9.7%-2.46 pp

2 · Industry

Inside Information Technology

Application Software3.14%-0.70 pp Technology Hardware, Storage & Peripherals9.31%+0.68 pp Systems Software7.34%-0.16 pp Semiconductor Materials & Equipment0.42%-0.14 pp Communications Equipment0.85%-0.13 pp Electronic Equipment & Instruments0.39%-0.05 pp IT Consulting & Other Services1.27%-0.05 pp Semiconductors3.46%+0.03 pp Internet Services & Infrastructure0.12%-0.03 pp Electronic Manufacturing Services0.15%-0.02 pp Electronic Components0.15%-0.01 pp Technology Distributors0.08%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.42%-0.145 pp

Concentrated

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

View all contributions →

Semiconductor Materials & Equipment · weight

0.42%

Industry change · 12M

-0.14 pp

Semiconductor Materials & Equipment · contribution

-0.145 pp

Company participation

25%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jul 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	$92.2bn	0.317%	-0.036 pp	-0.122 pp	-23.7%	No
Teradyne → TER	United States	$16.2bn	0.056%	-0.006 pp	-0.017 pp	-20.3%	No
Lam Research → LRCX	United States	$6.9bn	0.024%	+0.000 pp	-0.007 pp	-20.6%	No
KLA Corporation → KLAC	United States	$5.7bn	0.020%	+0.002 pp	+0.001 pp	+11.5%	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.