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 Equipment & Instruments›Electronic Equipment & Instruments

1 · Sector

Weight and 12M allocation change

Information Technology28.3%+2.98 pp Consumer Discretionary12.3%+1.34 pp Industrials9.9%+0.26 pp Energy3.7%+0.18 pp Materials2.9%-0.09 pp Communication Services2.9%-0.40 pp Real Estate2.8%-0.49 pp Utilities2.8%-0.68 pp Consumer Staples7.1%-0.72 pp Financials11.1%-0.86 pp Health Care16.2%-1.52 pp

2 · Industry

Inside Information Technology

Systems Software8.22%+1.14 pp Application Software3.70%+0.88 pp Semiconductors3.59%+0.52 pp Technology Hardware, Storage & Peripherals9.23%+0.22 pp Semiconductor Materials & Equipment0.49%+0.13 pp Communications Equipment0.96%+0.10 pp Electronic Equipment & Instruments0.36%-0.02 pp IT Consulting & Other Services1.28%+0.02 pp Electronic Manufacturing Services0.13%-0.01 pp Technology Distributors0.09%+0.01 pp Electronic Components0.13%-0.01 pp Internet Services & Infrastructure0.12%+0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.36%-0.020 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.36%

Industry change · 12M

-0.02 pp

Electronic Equipment & Instruments · contribution

-0.020 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2023 · 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
Keysight Technologies → KEYS	United States	$23.5bn	0.078%	+0.009 pp	-0.032 pp	-15.9%	Yes
Roper Technologies → ROP	United States	$51.7bn	0.173%	+0.054 pp	+0.023 pp	+35.5%	Yes
Zebra Technologies → ZBRA	United States	$12.1bn	0.041%	+0.005 pp	-0.013 pp	-9.7%	Yes
Teledyne Technologies → TDY	United States	$19.2bn	0.064%	+0.020 pp	+0.002 pp	+21.1%	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.