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

Consumer Discretionary11.4%+4.38 pp Energy3.6%+0.25 pp Consumer Staples7.5%+0.07 pp Utilities3.3%-0.11 pp Materials3.1%-0.19 pp Industrials10.0%-0.23 pp Real Estate3.1%-0.29 pp Communication Services3.2%-0.40 pp Health Care16.5%-0.47 pp Information Technology27.3%-1.33 pp Financials11.1%-1.69 pp

2 · Industry

Inside Information Technology

Technology Hardware, Storage & Peripherals9.19%-0.77 pp Systems Software7.60%-0.34 pp IT Consulting & Other Services1.22%-0.14 pp Semiconductor Materials & Equipment0.45%-0.05 pp Application Software3.32%+0.04 pp Internet Services & Infrastructure0.12%-0.03 pp Electronic Equipment & Instruments0.39%-0.03 pp Communications Equipment0.97%-0.03 pp Technology Distributors0.09%+0.01 pp Semiconductors3.62%-0.01 pp Electronic Manufacturing Services0.14%-0.00 pp Electronic Components0.14%+0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.39%-0.028 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.39%

Industry change · 12M

-0.03 pp

Electronic Equipment & Instruments · contribution

-0.028 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 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
Zebra Technologies → ZBRA	United States	$16.3bn	0.056%	+0.008 pp	-0.018 pp	-23.1%	Yes
Roper Technologies → ROP	United States	$46.8bn	0.160%	-0.006 pp	-0.008 pp	-6.1%	Yes
Teledyne Technologies → TDY	United States	$21.0bn	0.072%	+0.004 pp	-0.003 pp	-5.3%	Yes
Keysight Technologies → KEYS	United States	$28.8bn	0.098%	-0.012 pp	+0.001 pp	+2.2%	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.