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%+1.04 pp Financials11.9%+0.79 pp Consumer Discretionary12.0%+0.65 pp Industrials10.6%+0.56 pp Consumer Staples7.5%-0.03 pp Materials2.9%-0.23 pp Energy3.3%-0.30 pp Real Estate2.7%-0.32 pp Communication Services2.8%-0.43 pp Utilities2.7%-0.60 pp Health Care15.4%-1.13 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals7.61%-1.58 pp Systems Software9.07%+1.47 pp Semiconductors4.31%+0.69 pp Application Software3.77%+0.45 pp Communications Equipment0.82%-0.15 pp Semiconductor Materials & Equipment0.58%+0.13 pp IT Consulting & Other Services1.30%+0.08 pp Electronic Equipment & Instruments0.34%-0.04 pp Electronic Manufacturing Services0.17%+0.03 pp Internet Services & Infrastructure0.10%-0.02 pp Electronic Components0.13%-0.02 pp Technology Distributors0.10%+0.01 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.34%-0.044 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.34%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.044 pp

Company participation

25%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 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
Keysight Technologies → KEYS	United States	$27.3bn	0.076%	-0.007 pp	-0.022 pp	-3.2%	No
Teledyne Technologies → TDY	United States	$20.3bn	0.056%	-0.006 pp	-0.015 pp	-4.0%	No
Zebra Technologies → ZBRA	United States	$15.5bn	0.043%	+0.001 pp	-0.013 pp	-5.2%	Yes
Roper Technologies → ROP	United States	$60.0bn	0.166%	-0.007 pp	+0.007 pp	+28.0%	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.