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 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 Industrials

Aerospace & Defense5.90%-1.04 pp Rail Transportation1.10%+0.15 pp Industrial Conglomerates1.22%-0.13 pp Human Resource & Employment Services0.55%+0.10 pp Industrial Machinery & Supplies & Components0.97%-0.10 pp Construction Machinery & Heavy Transportation Equipment0.73%-0.09 pp Air Freight & Logistics0.82%-0.09 pp Environmental & Facilities Services0.43%+0.07 pp Data Processing & Outsourced Services0.07%+0.07 pp Electrical Components & Equipment0.67%-0.06 pp Passenger Airlines0.51%-0.04 pp Building Products0.44%-0.02 pp Trading Companies & Distributors0.09%-0.02 pp Diversified Support Services0.05%+0.02 pp Research & Consulting Services0.20%+0.01 pp Cargo Ground Transportation0.07%-0.01 pp Agricultural & Farm Machinery0.30%-0.01 pp Construction & Engineering0.08%+0.01 pp Heavy Electrical Equipment0.00%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation1.10%+0.155 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

1.10%

Industry change · 12M

+0.15 pp

Rail Transportation · contribution

+0.155 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
Union Pacific Corporation → UNP	United States	$121.2bn	0.703%	+0.326 pp	+0.094 pp	+31.5%	Yes
Norfolk Southern → NSC	United States	$48.0bn	0.278%	+0.123 pp	+0.041 pp	+31.5%	Yes
CSX Corporation → CSX	United States	$19.8bn	0.115%	+0.047 pp	+0.019 pp	+37.0%	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.