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

Health Care18.1%+1.27 pp Utilities3.8%+0.64 pp Information Technology17.5%+0.52 pp Real Estate3.7%+0.46 pp Materials2.5%+0.41 pp Communication Services3.6%+0.24 pp Consumer Discretionary7.1%+0.12 pp Energy4.3%-0.09 pp Consumer Staples8.8%-0.25 pp Industrials14.2%-1.17 pp Financials16.5%-2.16 pp

2 · Industry

Inside Information Technology

Systems Software5.08%+0.66 pp Application Software3.31%+0.38 pp Semiconductors3.18%-0.22 pp IT Consulting & Other Services1.59%-0.20 pp Semiconductor Materials & Equipment0.24%-0.16 pp Technology Hardware, Storage & Peripherals1.73%-0.13 pp Electronic Equipment & Instruments0.29%+0.12 pp Communications Equipment1.52%+0.07 pp Electronic Manufacturing Services0.16%-0.06 pp Internet Services & Infrastructure0.19%+0.05 pp Electronic Components0.18%+0.01 pp Technology Distributors0.00%+0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.29%+0.117 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.29%

Industry change · 12M

+0.12 pp

Electronic Equipment & Instruments · contribution

+0.117 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Feb 2019 · 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	$15.8bn	0.092%	+0.053 pp	+0.092 pp	+79.6%	Yes
Roper Technologies → ROP	United States	$33.5bn	0.194%	+0.092 pp	+0.025 pp	+18.4%	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.