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 Technology30.3%+3.46 pp Consumer Discretionary8.0%+1.23 pp Energy2.3%+0.44 pp Real Estate3.2%+0.18 pp Materials3.2%+0.02 pp Financials13.2%-0.02 pp Utilities3.0%-0.08 pp Health Care16.2%-0.17 pp Consumer Staples6.9%-1.22 pp Communication Services3.7%-1.34 pp Industrials10.0%-2.49 pp

2 · Industry

Inside Information Technology

Systems Software8.56%+1.53 pp Technology Hardware, Storage & Peripherals9.55%+0.61 pp Semiconductors4.03%+0.58 pp Application Software4.20%+0.53 pp Semiconductor Materials & Equipment0.59%+0.14 pp Communications Equipment0.98%+0.04 pp Electronic Equipment & Instruments0.46%+0.03 pp Internet Services & Infrastructure0.15%-0.02 pp Electronic Manufacturing Services0.17%+0.01 pp Technology Distributors0.09%+0.01 pp IT Consulting & Other Services1.35%-0.01 pp Electronic Components0.15%+0.01 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.46%+0.028 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.46%

Industry change · 12M

+0.03 pp

Electronic Equipment & Instruments · contribution

+0.028 pp

Company participation

75%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2021 · 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	$35.8bn	0.121%	+0.011 pp	+0.026 pp	+62.0%	Yes
Roper Technologies → ROP	United States	$49.0bn	0.165%	-0.005 pp	-0.025 pp	+9.3%	No
Zebra Technologies → ZBRA	United States	$31.5bn	0.106%	+0.001 pp	+0.021 pp	+55.6%	Yes
Teledyne Technologies → TDY	United States	$19.4bn	0.065%	-0.007 pp	+0.006 pp	+9.9%	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.