The wiki of investment concepts
Investment concepts,
explained.
ETFpedia explains investment concepts in plain, well-sourced language: what each idea is, why it works, which companies represent it, who it suits, and what the risks are. Each page is built to be a reliable reference for readers and answer engines alike.
Themes
- 01 AI Infrastructure AI infrastructure is the picks-and-shovels of the AI build-out (chips, networking, optical interconnects, and power) starting with optical networking.
- 02 Allied Manufacturing Supply-chain realignment toward trusted partners (friend-shoring), with South Korea a core node supplying AI memory, batteries, ships, defense, and power gear.
- 03 AI-Resilient Investing AI-resilient investing means owning physical, real-world businesses that AI cannot easily copy or automate: mining, freight, infrastructure, and more.
- 04 Defense & Rearmament The global rearmament cycle since 2022, led on exports by South Korea, whose Top 100 arms makers grew revenue 31% to $14.1 billion in 2024.
- 05 Batteries & Energy Storage Next-generation solid-state batteries and grid-scale energy storage (ESS), a market BloombergNEF expects to reach about 2 TW / 7.3 TWh by 2035.
- 06 Dividend Income Investing Dividend income investing: the evidence from S&P Dow Jones Indices and Fama-French, and Korea's value-up driven high-dividend financials as the 2026 case.
- 07 Robotics & Physical AI Robotics and physical AI is the bet on machines that perceive and act in the real world (humanoids, cobots, automation) as AI moves from screens to bodies.
- 08 Space Economy Companies that build and launch spacecraft (upstream) and sell services from orbit (downstream); a $613B market projected to reach $1.8T by 2035.
Investment concepts
- 01 Global Space Technology Global space technology is the worldwide space theme: about 30 developed-market companies from Rocket Lab and Viasat to Avio, MDA Space, and Astroscale.
- 02 Asia Memory Semiconductor How Korea, Japan, and Taiwan came to dominate DRAM, NAND, and HBM, and why the 2025-2026 AI memory supercycle runs through ten Asian companies.
- 03 Heavy Asset Low Obsolescence (HALO) HALO covers U.S.-listed physical-economy companies whose value sits in real assets like mines, railroads, and billboards that AI cannot easily copy or replace.
- 04 Google (Alphabet) AI Value Chain The Google (Alphabet) AI value chain lets investors own Google's AI supply chain (TPUs, foundry, optical, networking, servers) rather than just Alphabet stock.
- 05 Hyundai Motor Robotics Value Chain How Hyundai Motor Group built a vertically integrated robotics value chain, from Boston Dynamics and Atlas down to the Korean affiliates that supply the parts.
- 06 Korea AI Power Infrastructure How Korean transformer, cable, ESS, and fuel-cell makers became the marginal suppliers of the hardware AI data centers run on, and how to invest in it.
- 07 Korea Defense Industry The Korea defense industry theme is long exposure to South Korean arms makers riding a record export boom led by Hanwha Aerospace, Hyundai Rotem, and KAI.
- 08 Korea Manufacturing Core Alliance Korea Manufacturing Core Alliance is a friend-shoring theme covering Korean leaders in AI memory, batteries, ships, defense, the grid, and robotics.
- 09 Korea Financials & Holdings High Dividend How Korea's Corporate Value-up Program, Commercial Act reform, and dividend tax relief are re-rating high-dividend banks, insurers, and holding companies.
- 10 AI Electricity & Nuclear SMRs AI's power crunch is reviving nuclear. The AI electricity and SMR theme covers NuScale, Oklo, Constellation, and the firms powering data centers.
- 11 Solid-State Batteries & Energy Storage Solid-state batteries are the next-gen EV cell and ESS stores grid power, a Korean-led energy theme anchored by Samsung SDI and LG Energy Solution.
- 12 Optical Networking & Photonics Optical networking (photonics) moves data with light and is a fast-growing AI-infrastructure theme led by Ciena, Coherent, and Lumentum.
- 13 US AI Data Center The US AI data center concept covers the U.S.-listed companies behind AI's physical build-out: CoreWeave, Nebius, IREN, Oracle, Vertiv, Arista, and more.
- 14 U.S. Space Tech U.S. space tech is the commercial New Space theme: U.S.-listed upstream builders and downstream operators led by Rocket Lab, AST SpaceMobile, and Planet Labs.
- 15 US AI Semiconductor The US AI semiconductor concept covers the U.S.-listed chipmakers behind the AI build-out: NVIDIA, Broadcom, Intel, AMD, Micron, TSMC's ADR, and more.
How ETFpedia is built
A research-driven reference for investment concepts. Every fact is grounded in a primary source (company filings, regulatory disclosures, and peer-reviewed research), cited inline and dated, with figures refreshed after each earnings report.