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 Technology36.8%+3.53 pp Consumer Discretionary12.0%+1.16 pp Financials12.2%+0.79 pp Communication Services2.5%+0.07 pp Industrials9.8%+0.05 pp Utilities2.7%-0.09 pp Energy2.4%-0.29 pp Materials2.3%-0.34 pp Real Estate2.3%-0.39 pp Consumer Staples6.4%-0.84 pp Health Care10.6%-3.65 pp

2 · Industry

Inside Information Technology

Semiconductors14.10%+4.00 pp Technology Hardware, Storage & Peripherals7.49%-1.23 pp Systems Software8.37%+0.47 pp Communications Equipment1.12%+0.36 pp IT Consulting & Other Services0.93%-0.23 pp Semiconductor Materials & Equipment0.59%+0.09 pp Electronic Components0.26%+0.07 pp Application Software3.38%+0.06 pp Electronic Equipment & Instruments0.26%-0.04 pp Electronic Manufacturing Services0.17%+0.03 pp Technology Distributors0.04%-0.03 pp Internet Services & Infrastructure0.12%-0.02 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.26%-0.039 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.26%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.039 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 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
Roper Technologies → ROP	United States	$56.6bn	0.117%	-0.022 pp	-0.026 pp	-4.5%	No
Zebra Technologies → ZBRA	United States	$16.1bn	0.033%	+0.000 pp	-0.010 pp	-8.2%	No
Keysight Technologies → KEYS	United States	$28.1bn	0.058%	-0.003 pp	-0.006 pp	+6.0%	No
Teledyne Technologies → TDY	United States	$25.2bn	0.052%	-0.001 pp	+0.003 pp	+24.3%	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.