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 Technology17.9%+8.09 pp Financials16.2%+6.66 pp Health Care16.5%+6.53 pp Industrials13.4%+5.79 pp Consumer Staples9.0%+3.80 pp Communication Services5.3%+3.36 pp Materials3.2%+2.13 pp Real Estate3.8%+1.85 pp Utilities3.9%+1.83 pp Energy3.5%+1.02 pp Consumer Discretionary7.1%-41.06 pp

2 · Industry

Inside Industrials

Aerospace & Defense5.29%+2.16 pp Industrial Conglomerates1.37%+0.70 pp Industrial Machinery & Supplies & Components0.98%+0.47 pp Rail Transportation0.94%+0.36 pp Construction Machinery & Heavy Transportation Equipment0.69%+0.33 pp Electrical Components & Equipment0.63%+0.26 pp Human Resource & Employment Services0.52%+0.23 pp Air Freight & Logistics0.71%+0.22 pp Building Products0.45%+0.21 pp Environmental & Facilities Services0.44%+0.21 pp Passenger Airlines0.46%+0.16 pp Agricultural & Farm Machinery0.29%+0.14 pp Research & Consulting Services0.21%+0.10 pp Diversified Support Services0.12%+0.10 pp Trading Companies & Distributors0.11%+0.06 pp Construction & Engineering0.09%+0.04 pp Data Processing & Outsourced Services0.07%+0.03 pp Cargo Ground Transportation0.07%+0.02 pp Heavy Electrical Equipment0.00%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Rail Transportation

Rail Transportation0.94%+0.356 pp

Concentrated

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

View all contributions →

Rail Transportation · weight

0.94%

Industry change · 12M

+0.36 pp

Rail Transportation · contribution

+0.356 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 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	$114.9bn	0.599%	-0.076 pp	+0.234 pp	+15.7%	No
Norfolk Southern → NSC	United States	$47.5bn	0.247%	-0.021 pp	+0.092 pp	+11.1%	No
CSX Corporation → CSX	United States	$18.3bn	0.096%	-0.004 pp	+0.030 pp	+3.4%	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.