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 Technology40.9%+4.04 pp Energy3.9%+1.55 pp Health Care10.6%+0.01 pp Communication Services2.3%-0.19 pp Materials2.0%-0.23 pp Real Estate1.9%-0.31 pp Industrials9.3%-0.48 pp Utilities2.2%-0.48 pp Consumer Staples5.5%-0.92 pp Consumer Discretionary10.8%-1.27 pp Financials10.5%-1.72 pp

2 · Industry

Inside Information Technology

Semiconductors17.29%+3.19 pp Technology Hardware, Storage & Peripherals8.93%+1.44 pp Application Software2.00%-1.38 pp Semiconductor Materials & Equipment1.75%+1.16 pp Systems Software7.68%-0.69 pp Communications Equipment1.54%+0.41 pp IT Consulting & Other Services0.64%-0.29 pp Electronic Components0.47%+0.21 pp Electronic Manufacturing Services0.22%+0.05 pp Internet Services & Infrastructure0.09%-0.03 pp Electronic Equipment & Instruments0.24%-0.02 pp Technology Distributors0.03%-0.01 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.24%-0.024 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.24%

Industry change · 12M

-0.02 pp

Electronic Equipment & Instruments · contribution

-0.024 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Aug 2026 · 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	$42.0bn	0.070%	+0.013 pp	-0.047 pp	-18.6%	Yes
Keysight Technologies → KEYS	United States	$55.1bn	0.092%	-0.009 pp	+0.034 pp	+97.5%	Yes
Zebra Technologies → ZBRA	United States	$16.7bn	0.028%	+0.008 pp	-0.006 pp	+11.5%	Yes
Teledyne Technologies → TDY	United States	$28.4bn	0.047%	-0.002 pp	-0.005 pp	+13.9%	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.