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

Health Care17.4%+1.93 pp Energy3.5%+1.25 pp Information Technology27.4%+1.16 pp Consumer Staples8.2%+1.08 pp Real Estate3.5%+0.45 pp Utilities3.5%+0.28 pp Materials3.4%+0.03 pp Consumer Discretionary6.9%-0.64 pp Communication Services3.6%-1.08 pp Financials12.4%-2.12 pp Industrials10.2%-2.35 pp

2 · Industry

Inside Industrials

Aerospace & Defense2.33%-1.90 pp Industrial Conglomerates0.87%-0.22 pp Rail Transportation1.02%+0.14 pp Industrial Machinery & Supplies & Components1.03%-0.14 pp Air Freight & Logistics0.72%-0.14 pp Building Products0.48%-0.09 pp Construction Machinery & Heavy Transportation Equipment0.63%-0.08 pp Human Resource & Employment Services0.49%+0.08 pp Environmental & Facilities Services0.46%+0.06 pp Passenger Airlines0.26%-0.05 pp Heavy Electrical Equipment0.05%-0.02 pp Cargo Ground Transportation0.12%+0.02 pp Construction & Engineering0.11%+0.01 pp Electrical Components & Equipment0.61%-0.01 pp Data Processing & Outsourced Services0.06%-0.01 pp Research & Consulting Services0.21%-0.00 pp Agricultural & Farm Machinery0.42%-0.00 pp Diversified Support Services0.11%+0.00 pp Trading Companies & Distributors0.14%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation1.02%+0.144 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

1.02%

Industry change · 12M

+0.14 pp

Rail Transportation · contribution

+0.144 pp

Company participation

33%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Apr 2022 · 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
CSX Corporation → CSX	United States	$74.7bn	0.270%	+0.015 pp	+0.178 pp	+3.4%	Yes
Norfolk Southern → NSC	United States	$61.5bn	0.222%	-0.000 pp	-0.031 pp	-6.2%	No
Union Pacific Corporation → UNP	United States	$147.1bn	0.532%	+0.003 pp	-0.003 pp	+7.5%	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.