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 Technology29.7%+5.20 pp Consumer Discretionary11.9%+0.62 pp Industrials10.2%+0.09 pp Communication Services2.9%-0.50 pp Real Estate2.8%-0.52 pp Materials2.7%-0.53 pp Utilities2.7%-0.66 pp Consumer Staples6.7%-0.73 pp Energy3.1%-0.73 pp Financials11.7%-0.96 pp Health Care15.6%-1.28 pp

2 · Industry

Inside Information Technology

Systems Software9.23%+2.66 pp Application Software3.96%+0.91 pp Semiconductors4.03%+0.77 pp Technology Hardware, Storage & Peripherals8.82%+0.66 pp IT Consulting & Other Services1.41%+0.17 pp Semiconductor Materials & Equipment0.51%+0.09 pp Electronic Equipment & Instruments0.35%-0.04 pp Electronic Manufacturing Services0.18%+0.04 pp Communications Equipment0.86%-0.04 pp Electronic Components0.13%-0.01 pp Internet Services & Infrastructure0.12%-0.01 pp Technology Distributors0.09%-0.00 pp

3 · Sub-industry

Inside Electronic Equipment & Instruments

Electronic Equipment & Instruments0.35%-0.043 pp

Concentrated

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

View all contributions →

Electronic Equipment & Instruments · weight

0.35%

Industry change · 12M

-0.04 pp

Electronic Equipment & Instruments · contribution

-0.043 pp

Company participation

25%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2024 · 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	$26.8bn	0.080%	+0.006 pp	-0.030 pp	-14.5%	Yes
Zebra Technologies → ZBRA	United States	$12.3bn	0.037%	+0.000 pp	-0.019 pp	-24.2%	No
Roper Technologies → ROP	United States	$57.4bn	0.171%	-0.007 pp	+0.016 pp	+26.6%	No
Teledyne Technologies → TDY	United States	$19.7bn	0.059%	-0.001 pp	-0.009 pp	-1.4%	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.