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 Technology33.7%+4.42 pp Financials12.6%+1.00 pp Consumer Staples7.2%+0.57 pp Utilities2.7%+0.11 pp Communication Services2.7%-0.04 pp Real Estate2.5%-0.34 pp Energy2.6%-0.50 pp Materials2.3%-0.52 pp Consumer Discretionary11.8%-0.67 pp Industrials9.5%-0.95 pp Health Care12.4%-3.07 pp

2 · Industry

Inside Information Technology

Semiconductors11.14%+6.88 pp Systems Software7.19%-2.04 pp Application Software3.31%-0.58 pp Communications Equipment1.03%+0.22 pp Technology Hardware, Storage & Peripherals8.43%+0.20 pp IT Consulting & Other Services1.20%-0.19 pp Electronic Components0.19%+0.06 pp Electronic Equipment & Instruments0.29%-0.05 pp Technology Distributors0.05%-0.04 pp Electronic Manufacturing Services0.14%-0.04 pp Internet Services & Infrastructure0.13%+0.03 pp Semiconductor Materials & Equipment0.57%-0.02 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.29%-0.051 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.29%

Industry change · 12M

-0.05 pp

Electronic Equipment & Instruments · contribution

-0.051 pp

Company participation

50%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 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	$62.8bn	0.140%	+0.006 pp	-0.027 pp	+7.9%	Yes
Keysight Technologies → KEYS	United States	$27.6bn	0.062%	-0.004 pp	-0.016 pp	+3.4%	No
Zebra Technologies → ZBRA	United States	$16.2bn	0.036%	-0.010 pp	-0.005 pp	+12.7%	No
Teledyne Technologies → TDY	United States	$24.1bn	0.054%	+0.004 pp	-0.004 pp	+20.5%	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.