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›Industrials›Rail Transportation›Rail Transportation

1 · Sector

Weight and 12M allocation change

Consumer Discretionary11.4%+4.38 pp Energy3.6%+0.25 pp Consumer Staples7.5%+0.07 pp Utilities3.3%-0.11 pp Materials3.1%-0.19 pp Industrials10.0%-0.23 pp Real Estate3.1%-0.29 pp Communication Services3.2%-0.40 pp Health Care16.5%-0.47 pp Information Technology27.3%-1.33 pp Financials11.1%-1.69 pp

2 · Industry

Inside Industrials

Rail Transportation0.80%-0.30 pp Aerospace & Defense2.47%+0.11 pp Industrial Machinery & Supplies & Components1.14%+0.11 pp Industrial Conglomerates0.74%-0.11 pp Construction Machinery & Heavy Transportation Equipment0.71%+0.08 pp Air Freight & Logistics0.73%-0.05 pp Heavy Electrical Equipment0.02%-0.04 pp Passenger Airlines0.19%-0.04 pp Human Resource & Employment Services0.46%-0.03 pp Diversified Support Services0.14%+0.03 pp Research & Consulting Services0.19%-0.03 pp Electrical Components & Equipment0.63%+0.02 pp Environmental & Facilities Services0.44%+0.02 pp Agricultural & Farm Machinery0.42%-0.01 pp Construction & Engineering0.12%+0.01 pp Building Products0.50%+0.01 pp Cargo Ground Transportation0.13%-0.00 pp Data Processing & Outsourced Services0.06%-0.00 pp Trading Companies & Distributors0.15%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.80%-0.297 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.80%

Industry change · 12M

-0.30 pp

Rail Transportation · contribution

-0.297 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Mar 2023 · 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
Union Pacific Corporation → UNP	United States	$123.1bn	0.420%	-0.039 pp	-0.166 pp	-24.5%	No
CSX Corporation → CSX	United States	$61.8bn	0.211%	-0.024 pp	-0.066 pp	-19.0%	No
Norfolk Southern → NSC	United States	$48.3bn	0.165%	-0.041 pp	-0.065 pp	-24.1%	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.