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›Electronic Components›Electronic Components

1 · Sector

Weight and 12M allocation change

Information Technology34.6%+6.31 pp Utilities2.9%+0.04 pp Consumer Staples7.1%+0.00 pp Real Estate2.6%-0.16 pp Industrials9.7%-0.18 pp Financials11.0%-0.18 pp Materials2.6%-0.35 pp Communication Services2.5%-0.43 pp Consumer Discretionary11.3%-1.04 pp Energy2.5%-1.29 pp Health Care13.5%-2.72 pp

2 · Industry

Inside Information Technology

Semiconductors11.59%+8.00 pp Technology Hardware, Storage & Peripherals8.55%-0.69 pp Systems Software7.84%-0.38 pp Application Software3.39%-0.31 pp Communications Equipment0.77%-0.19 pp IT Consulting & Other Services1.18%-0.11 pp Electronic Equipment & Instruments0.30%-0.06 pp Electronic Components0.18%+0.05 pp Technology Distributors0.07%-0.02 pp Electronic Manufacturing Services0.14%+0.01 pp Internet Services & Infrastructure0.13%+0.01 pp Semiconductor Materials & Equipment0.49%+0.00 pp

3 · Sub-industry

Inside Electronic Components

Electronic Components0.18%+0.053 pp

Concentrated

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

View all contributions →

Electronic Components · weight

0.18%

Industry change · 12M

+0.05 pp

Electronic Components · contribution

+0.053 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2024 · 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
Amphenol → APH	United States	$39.2bn	0.091%	+0.053 pp	+0.050 pp	+56.5%	Yes
Corning Inc. → GLW	United States	$38.6bn	0.090%	+0.028 pp	+0.003 pp	+53.1%	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.