debt_leverage_profile
0.63x Total Debt / Equity (Moderate leverage)
High
SEC-XBRL
interest_rate_sensitivity
Moderate
Medium
SEC-10K 0001628280-26-006268
geopolitical_supply_exposure
Medium intensity; China's 2025 export-licensing regime on rare earths and NdFeB magnets (layered on its gallium/germanium/antimony controls) is the live chokepoint for motors, actuators, and defense electronics, while the mid-2025 expansion of US Section 232 tariffs to 50% on steel and aluminum repriced the sector's core structural-metal inputs.
Medium
GICS-commodity-overlay-v2
supply_chain_dependency
High
Medium
SEC-10K 0001628280-26-006268
international_expansion_readiness
Moderate
Medium
SEC-10K 0001628280-26-006268
geographic_footprint
Domestic, primarily Southeast/East/Midwest
Medium
SEC-10K 0001628280-26-006268
commodity_exposure_profile
Medium intensity; commodities: steel, aluminum, copper, jet fuel / diesel (refined distillates), rare earth elements & NdFeB magnets, titanium, nickel; geopolitical: China's 2025 export-licensing regime on rare earths and NdFeB magnets (layered on its gallium/germanium/antimony controls) is the live chokepoint for motors, actuators, and defense electronics, while the mid-2025 expansion of US Section 232 tariffs to 50% on steel and aluminum repriced the sector's core structural-metal inputs.
Medium
GICS-commodity-overlay-v2
vendor_lock_dependency_score
High
Medium
SEC-10K 0001628280-26-006268
business_model_type_primary
railroad operator / freight transportation
Medium
SEC-10K 0001628280-26-006268
business_model_type_secondary
intermodal logistics network
Medium
SEC-10K 0001628280-26-006268
switching_cost_profile
Low API coupling risk; NSC uses proprietary rail management systems with limited third-party API dependencies; switching cost is internal IT rebuild, not vendor lock-in
Inferred
Agent_Inference
howey_test_risk_index
Low
Medium
SEC-10K 0001628280-26-006268
regulatory_burden_tier
Medium
Medium
GICS-regulatory-overlay-v1
data_sovereignty_risk
Low
Medium
SEC-10K 0001628280-26-006268
antitrust_exposure_flag
Moderate; eastern US rail duopoly with CSX; STB oversight limits pricing abuse; no active DOJ action but rate-setting and merger activity face regulatory scrutiny
Inferred
Agent_Inference
regulatory_exposure_profile
Medium burden; regimes: FAA, DOT, OSHA, EPA, ITAR, FTC; Export controls and defense procurement rules create contract concentration risk.
Medium
GICS-regulatory-overlay-v1
revenue_model_type
transactional
Medium
SEC-10K 0001628280-26-006268
monetization_vector
per-transaction / per-carload
Medium
SEC-10K 0001628280-26-006268
pricing_architecture
negotiated / contract-based
Medium
SEC-10K 0001628280-26-006268
pricing_power_rating
Moderate
Medium
SEC-10K 0001628280-26-006268
target_gross_margin_bracket
Gross margin ~35-40%; operating ratio target 60-65%; capital-intensive model compresses margins versus asset-light peers
Inferred
Agent_Inference
churn_vulnerability_index
Moderate
Medium
SEC-10K 0001628280-26-006268
headcount_cost_structure
71.1% OpEx / Revenue (High Cost Structure)
High
SEC-XBRL
marginal_cost_of_growth
61.6% OpEx as % Revenue (High Growth Cost)
High
SEC-XBRL
franchise_compliance_risk
N-A
Medium
SEC-10K 0001628280-26-006268
customer_acquisition_metric
Direct sales / relationship-based; marketing and service initiatives
Medium
SEC-10K 0001628280-26-006268
network_effect_present
Weak direct network effects; value increases modestly with route density and interchange partners (Amtrak, short lines); not a platform business with exponential network scaling
Inferred
Agent_Inference
asset_efficiency_ratio
8.1% Return on Assets (Excellent)
High
SEC-XBRL
recession_resistance_tier
Cyclical
Medium
SEC-10K 0001628280-26-006268
customer_segment_primary
enterprise
Medium
SEC-10K 0001628280-26-006268
customer_segment_secondary
government
Medium
SEC-10K 0001628280-26-006268
characteristic_occupations
["11-0000 Management Occupations", "13-0000 Business and Financial Operations Occupations", "15-0000 Computer and Mathematical Occupations", "17-0000 Architecture and Engineering Occupations", "23-0000 Legal Occupations", "33-0000 Protective Service Occupations", "37-0000 Building and Grounds Cleaning and Maintenance Occupations", "41-0000 Sales and Related Occupations", "43-0000 Office and Administrative Support Occupations", "47-0000 Construction and Extraction Occupations", "49-0000 Installation, Maintenance, and Repair Occupations", "51-0000 Production Occupations", "53-0000 Transportation and Material Moving Occupations"]
High
SOC-2018/GICS-overlay
agent_automatable_labor_share
0.21 (HIL — ~21% of characteristic roles agent-automatable)
Medium
SOC-2018 + agentic-exposure-v2
capital_expenditure_profile
18.1% CapEx / Revenue (High-CapEx Infrastructure)
High
SEC-XBRL
sec_cik
0000702165
High
SEC-EDGAR
ticker
NSC
High
SEC-EDGAR
Filings_Dog_Scope
antitrust_exposure_flag,business_model_type_primary,business_model_type_secondary,churn_vulnerability_index,customer_acquisition_metric,customer_segment_primary,customer_segment_secondary,data_sovereignty_risk,franchise_compliance_risk,geographic_footprint,geopolitical_supply_exposure,headcount_cost_structure,howey_test_risk_index,interest_rate_sensitivity,international_expansion_readiness,marginal_cost_of_growth,monetization_vector,network_effect_present,pricing_architecture,pricing_power_rating,recession_resistance_tier,regulatory_burden_tier,revenue_model_type,supply_chain_dependency,switching_cost_profile,vendor_lock_dependency_score
High
SEC-10K 0001628280-26-006268
insider_buys_6m
0
High
SEC-Form4 0001225208-26-007815..0001225208-26-004667
insider_sells_6m
0
High
SEC-Form4 0001225208-26-007815..0001225208-26-004667
insider_net_shares_6m
0
High
SEC-Form4 0001225208-26-007815..0001225208-26-004667
insider_last_transaction_date
none in window
High
SEC-Form4 0001225208-26-007815..0001225208-26-004667
Insider_Dog_Checked
2026-10-03T13:59|activist_13d_count_1y,activist_last_13d_date,blockholder_13g_count_1y,insider_buys_6m,insider_last_transaction_date,insider_net_shares_6m,insider_sells_6m
High
SEC-Form4 registry
activist_13d_count_1y
0
High
SEC-13D/G registry, subject-verified
blockholder_13g_count_1y
3
High
SEC-13D/G registry, subject-verified
activist_last_13d_date
none in window
High
SEC-13D/G registry, subject-verified