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

Information Technology29.9%+5.36 pp Consumer Discretionary12.3%+1.32 pp Materials2.8%-0.26 pp Communication Services2.9%-0.31 pp Industrials9.8%-0.31 pp Real Estate2.9%-0.32 pp Utilities2.9%-0.55 pp Energy3.3%-0.63 pp Consumer Staples6.8%-0.92 pp Financials11.2%-1.15 pp Health Care15.3%-2.24 pp

2 · Industry

Inside Industrials

Industrial Conglomerates0.66%-0.18 pp Agricultural & Farm Machinery0.33%-0.12 pp Industrial Machinery & Supplies & Components1.18%+0.11 pp Rail Transportation0.78%-0.11 pp Air Freight & Logistics0.59%-0.11 pp Diversified Support Services0.24%+0.10 pp Human Resource & Employment Services0.43%-0.09 pp Passenger Airlines0.16%-0.04 pp Environmental & Facilities Services0.49%+0.04 pp Construction Machinery & Heavy Transportation Equipment0.71%+0.03 pp Electrical Components & Equipment0.65%+0.02 pp Trading Companies & Distributors0.15%+0.02 pp Research & Consulting Services0.19%+0.01 pp Data Processing & Outsourced Services0.07%+0.01 pp Building Products0.50%-0.01 pp Construction & Engineering0.13%+0.01 pp Aerospace & Defense2.39%-0.01 pp Cargo Ground Transportation0.13%+0.00 pp Heavy Electrical Equipment0.02%-0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.78%-0.108 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.78%

Industry change · 12M

-0.11 pp

Rail Transportation · contribution

-0.108 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 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
Norfolk Southern → NSC	United States	$49.3bn	0.154%	+0.005 pp	-0.048 pp	-12.8%	Yes
CSX Corporation → CSX	United States	$63.8bn	0.199%	+0.006 pp	-0.034 pp	+0.2%	Yes
Union Pacific Corporation → UNP	United States	$137.3bn	0.428%	-0.000 pp	-0.026 pp	+6.3%	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.