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 Technology29.3%+4.19 pp Consumer Discretionary12.5%+1.15 pp Industrials10.5%+0.21 pp Real Estate2.8%-0.41 pp Materials2.8%-0.42 pp Communication Services2.8%-0.51 pp Utilities2.6%-0.62 pp Energy3.1%-0.63 pp Consumer Staples6.6%-0.85 pp Financials11.6%-1.05 pp Health Care15.5%-1.06 pp

2 · Industry

Inside Information Technology

Systems Software9.23%+2.44 pp Semiconductors4.26%+0.94 pp Application Software3.89%+0.89 pp Technology Hardware, Storage & Peripherals8.24%-0.26 pp IT Consulting & Other Services1.39%+0.18 pp Semiconductor Materials & Equipment0.59%+0.15 pp Communications Equipment0.81%-0.11 pp Electronic Equipment & Instruments0.34%-0.04 pp Electronic Manufacturing Services0.18%+0.04 pp Electronic Components0.13%-0.02 pp Internet Services & Infrastructure0.10%-0.01 pp Technology Distributors0.09%-0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.34%-0.043 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

-0.043 pp

Company participation

25%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 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	$27.0bn	0.077%	+0.002 pp	-0.023 pp	-3.5%	No
Zebra Technologies → ZBRA	United States	$14.4bn	0.041%	+0.003 pp	-0.013 pp	-6.9%	Yes
Teledyne Technologies → TDY	United States	$20.2bn	0.058%	-0.001 pp	-0.013 pp	-0.7%	No
Roper Technologies → ROP	United States	$58.3bn	0.167%	-0.012 pp	+0.006 pp	+27.4%	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.