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 Technology33.1%+5.29 pp Financials12.3%+0.37 pp Communication Services2.8%+0.09 pp Utilities2.9%+0.07 pp Real Estate2.5%-0.09 pp Consumer Staples7.6%-0.20 pp Materials2.3%-0.53 pp Consumer Discretionary11.5%-0.54 pp Energy2.4%-0.88 pp Industrials9.9%-0.92 pp Health Care12.6%-2.65 pp

2 · Industry

Inside Information Technology

Semiconductors10.66%+6.47 pp Systems Software7.68%-1.10 pp Application Software3.26%-0.33 pp Communications Equipment1.01%+0.21 pp Electronic Components0.20%+0.07 pp Internet Services & Infrastructure0.16%+0.06 pp Technology Hardware, Storage & Peripherals7.95%+0.06 pp Electronic Equipment & Instruments0.29%-0.04 pp Technology Distributors0.05%-0.04 pp Semiconductor Materials & Equipment0.57%-0.02 pp Electronic Manufacturing Services0.14%-0.02 pp IT Consulting & Other Services1.16%-0.02 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.29%-0.045 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.29%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.045 pp

Company participation

50%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2025 · 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	$12.7bn	0.031%	-0.014 pp	-0.016 pp	-20.4%	No
Keysight Technologies → KEYS	United States	$25.1bn	0.060%	-0.008 pp	-0.014 pp	-1.7%	No
Roper Technologies → ROP	United States	$60.1bn	0.144%	+0.007 pp	-0.014 pp	+10.1%	Yes
Teledyne Technologies → TDY	United States	$21.8bn	0.052%	-0.001 pp	+0.000 pp	+22.2%	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.