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 Technology35.4%+6.08 pp Financials12.0%+0.50 pp Consumer Discretionary12.8%+0.34 pp Consumer Staples6.7%+0.10 pp Utilities2.6%-0.18 pp Communication Services2.5%-0.30 pp Real Estate2.3%-0.61 pp Materials2.2%-0.64 pp Energy2.4%-0.74 pp Industrials9.3%-1.06 pp Health Care11.7%-3.51 pp

2 · Industry

Inside Information Technology

Semiconductors12.18%+8.17 pp Systems Software7.54%-1.19 pp Technology Hardware, Storage & Peripherals8.85%-0.38 pp Application Software3.51%-0.29 pp IT Consulting & Other Services1.14%-0.19 pp Electronic Equipment & Instruments0.28%-0.08 pp Semiconductor Materials & Equipment0.58%+0.07 pp Electronic Components0.19%+0.07 pp Electronic Manufacturing Services0.13%-0.05 pp Technology Distributors0.05%-0.04 pp Communications Equipment0.82%-0.03 pp Internet Services & Infrastructure0.14%+0.02 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.28%-0.078 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.28%

Industry change · 12M

-0.08 pp

Electronic Equipment & Instruments · contribution

-0.078 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 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
Roper Technologies → ROP	United States	$55.7bn	0.126%	-0.012 pp	-0.047 pp	-4.1%	No
Keysight Technologies → KEYS	United States	$27.8bn	0.063%	-0.001 pp	-0.020 pp	+1.0%	Yes
Teledyne Technologies → TDY	United States	$21.6bn	0.049%	+0.001 pp	-0.014 pp	+4.0%	Yes
Zebra Technologies → ZBRA	United States	$19.9bn	0.045%	+0.001 pp	+0.003 pp	+41.3%	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.