# The Memory Cycle: Global Oligopoly and HBM Leadership

Source: https://historyofmarket.com/semi/semi-memory/
Language: en
License: data CC BY 4.0, text © History of Market — cite "History of Market (historyofmarket.com)" and link the source page. Terms: https://historyofmarket.com/license/
Section: History of Market › Semiconductors › The Memory Cycle: Global Oligopoly and HBM Leadership

**Global Memory Architecture** — Competitive dynamics, market share, and cyclical swings across DRAM, NAND flash, and High-Bandwidth Memory (HBM).

Figure: Plate III.7 · Memory exhibits the most violent cyclical swings in the semiconductor sector. Micron (MU) is the sole pure-play memory firm in the SOX index; global HBM and DRAM production is dominated by the three-firm oligopoly of Samsung, SK Hynix, and Micron.

## Latest Snapshot

- **Data file updated** — 2026-10-21

## What this page answers

This static page is built to answer searches for Memory · DRAM / NAND / HBM. It summarizes the live dataset behind the The Memory Cycle: Global Oligopoly and HBM Leadership panel and links to the full interactive chart.

The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.

## Data & Source

[GET /api/semi/composition.json](https://historyofmarket.com/api/semi/composition.json) — Canonical dataset endpoint.

Exchange closing prices · Company filings · Robert Shiller · FRED · NBER.

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Data: https://historyofmarket.com/api/semi/composition.json
Machine index: https://historyofmarket.com/llms.txt