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%+3.01 pp Energy3.9%+1.57 pp Health Care17.5%+1.30 pp Consumer Staples7.7%+0.79 pp Utilities3.4%+0.46 pp Industrials10.1%+0.13 pp Real Estate3.2%-0.06 pp Materials3.1%-0.11 pp Communication Services3.2%-0.50 pp Financials12.4%-0.81 pp Information Technology24.5%-5.78 pp

2 · Industry

Inside Information Technology

Systems Software6.70%-1.85 pp Application Software2.87%-1.33 pp Technology Hardware, Storage & Peripherals8.28%-1.27 pp Semiconductors3.14%-0.89 pp Semiconductor Materials & Equipment0.41%-0.18 pp Electronic Equipment & Instruments0.38%-0.08 pp Communications Equipment0.92%-0.07 pp IT Consulting & Other Services1.31%-0.04 pp Electronic Manufacturing Services0.14%-0.03 pp Internet Services & Infrastructure0.12%-0.03 pp Electronic Components0.14%-0.01 pp Technology Distributors0.09%-0.00 pp

3 · Sub-industry

Inside Semiconductor Materials & Equipment

Semiconductor Materials & Equipment0.41%-0.176 pp

Concentrated

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

View all contributions →

Semiconductor Materials & Equipment · weight

0.41%

Industry change · 12M

-0.18 pp

Semiconductor Materials & Equipment · contribution

-0.176 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 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	$94.3bn	0.320%	+0.030 pp	-0.129 pp	-24.8%	Yes
Teradyne → TER	United States	$14.6bn	0.049%	+0.002 pp	-0.035 pp	-38.6%	No
Lam Research → LRCX	United States	$6.4bn	0.022%	+0.000 pp	-0.010 pp	-29.6%	Yes
KLA Corporation → KLAC	United States	$5.6bn	0.019%	+0.001 pp	-0.002 pp	-2.4%	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.