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 Technology29.0%+4.54 pp Consumer Discretionary12.1%+0.51 pp Industrials9.9%+0.06 pp Materials2.9%-0.07 pp Real Estate2.8%-0.34 pp Communication Services2.9%-0.37 pp Utilities2.9%-0.44 pp Energy3.6%-0.51 pp Consumer Staples7.1%-0.55 pp Financials11.0%-1.14 pp Health Care15.8%-1.70 pp

2 · Industry

Inside Information Technology

Systems Software8.94%+2.53 pp Application Software3.75%+0.86 pp Semiconductors3.44%+0.58 pp Technology Hardware, Storage & Peripherals9.37%+0.43 pp Semiconductor Materials & Equipment0.47%+0.12 pp Communications Equipment0.96%+0.09 pp Electronic Equipment & Instruments0.35%-0.04 pp Electronic Components0.12%-0.02 pp Electronic Manufacturing Services0.13%-0.01 pp Technology Distributors0.09%+0.01 pp IT Consulting & Other Services1.29%+0.01 pp Internet Services & Infrastructure0.12%-0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.35%-0.037 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.35%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.037 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 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
Keysight Technologies → KEYS	United States	$21.7bn	0.074%	+0.011 pp	-0.037 pp	-29.9%	Yes
Roper Technologies → ROP	United States	$52.1bn	0.177%	+0.063 pp	+0.021 pp	+18.6%	Yes
Zebra Technologies → ZBRA	United States	$10.8bn	0.037%	+0.002 pp	-0.015 pp	-26.1%	No
Teledyne Technologies → TDY	United States	$17.7bn	0.060%	+0.021 pp	-0.006 pp	-5.9%	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.