--- title: "Several super CAPEX cycles in U.S. history:1880s Railroad Era → 6% of GDP1920s Electrification Era →" description: "Several super CAPEX cycles in U.S. history:1880s Railroad Era → 6% of GDP1920s Electrification Era → 4% of GDP1960s Cold War Military-Industrial Complex → 3% of GDP2026 AI Infrastructure Era → 2% of G" type: "topic" locale: "en" url: "https://longbridge.com/en/topics/38739247.md" published_at: "2026-02-14T02:16:42.000Z" author: "[浩浩荡荡](https://longbridge.com/en/profiles/19784218)" --- # Several super CAPEX cycles in U.S. history:1880s Railroad Era → 6% of GDP1920s Electrification Era → Several super CAPEX cycles in U.S. history: 1880s Railroad Era → 6% of GDP 1920s Electrification Era → 4% of GDP 1960s Cold War Military-Industrial Complex → 3% of GDP 2026 AI Infrastructure Era → 2% of GDP (still accelerating) Each round of infrastructure expansion at this level ultimately gave birth to a group of long-term, era-defining winners. $Chevron(CVX.US) $Union Pacific(UNP.US) $GE Aerospace(GE.US) $AT & T(T.US) $RTX(RTX.US) $Lockheed Martin(LMT.US) ### Related Stocks - [CVX.US - Chevron](https://longbridge.com/en/quote/CVX.US.md) - [UNP.US - Union Pacific](https://longbridge.com/en/quote/UNP.US.md) - [GE.US - GE Aerospace](https://longbridge.com/en/quote/GE.US.md) - [RTX.US - RTX](https://longbridge.com/en/quote/RTX.US.md) - [LMT.US - Lockheed Martin](https://longbridge.com/en/quote/LMT.US.md) --- > **Disclaimer**: This article is for reference only and does not constitute any investment advice.