{"slug": "short-memory-the-most-dangerous-words-in-investing-are-back", "title": "Short memory? The most dangerous words in investing are back", "summary": "Micron Technology crossed $1 trillion in market value this week, joining Samsung and SK Hynix as memory-chip makers reach historic valuations amid surging AI demand. The industry's consolidation to three dominant players and multi-year supply agreements with cloud giants have investors questioning whether the notoriously cyclical memory business has fundamentally changed.", "body_md": "[Micron crossed $1 trillion](https://www.businessinsider.com/mu-stock-micron-memory-chips-ai-sndk-wdc-stx-2026-5) in market value this week, a milestone that would have sounded absurd to most investors even a few years ago. The memory-chip business has long been one of the cruelest corners of tech: brutal booms followed by catastrophic busts.\n\nI've covered this story before. Back in 2017, I [wrote](https://www.bloomberg.com/news/articles/2017-09-29/sun-co-founder-sells-secretive-hedge-fund-on-radical-chip-trade?accessToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzb3VyY2UiOiJTdWJzY3JpYmVyR2lmdGVkQXJ0aWNsZSIsImlhdCI6MTc3OTkwNTA4MiwiZXhwIjoxNzgwNTA5ODgyLCJhcnRpY2xlSWQiOiJPWDBKQTNTWUYwMVgwMSIsImJjb25uZWN0SWQiOiIzMEIzQzVGMzE4MkI0MEIwQkE1QURDNjM3M0FDOTVENCJ9.4w0i-FyepRBp77MlB_wFXwYM2uRF9P9JAo_DJLN5cwM&leadSource=uverify%20wall) about Sun Microsystems co-founder Bill Joy arguing that the DRAM market had finally changed for good. His thesis was that fewer suppliers and rising demand from cloud computing and AI would reduce the industry's historic tendency to destroy itself through overproduction.\n\nThat argument turned out to be early, not wrong.\n\nMicron shares have soared roughly twentyfold since then. Samsung crossed the $1 trillion market-cap threshold earlier this month, and [SK Hynix](https://www.businessinsider.com/ai-memory-chip-boom-next-trillion-dollar-company-sk-hynix-2026-5) joined the party on Tuesday. There are fundamentals behind these moves: Samsung made more than $30 billion in profit during the first quarter alone.\n\nNow investors are asking the most dangerous question in finance: Is this time different?\n\nMaybe.\n\nThe first big change is consolidation.\n\nIn the early 1990s, there were more than 20 meaningful [DRAM](https://www.businessinsider.com/big-tech-capex-ai-growth-inflated-memory-prices-rbc-2026-2) makers globally. Today, the industry is effectively controlled by three companies: Samsung, SK Hynix, and Micron.\n\nFor decades, memory makers responded to rising demand by flooding the market with new supply. Prices eventually collapsed and profits evaporated. Fewer competitors may mean fewer incentives to repeat that cycle.\n\nThe second change is AI demand itself.\n\nModern AI systems are [ravenous consumers of memory](https://www.businessinsider.com/google-researcher-ai-models-analyze-millions-of-words-at-once-2023-10) because they constantly move and process huge amounts of data inside giant data centers. Even advanced techniques designed to reduce computing bottlenecks still run into memory constraints. Startup [Lightmatter](https://www.businessinsider.com/chip-lightmatter-intel-veteran-lead-engineering-artificial-intelligence-2022-7) is using photonics — essentially light instead of copper — to speed up AI data centers, but CEO Nick Harris told me recently that this does nothing to eliminate the [memory bottleneck](https://www.businessinsider.com/memory-stocks-rally-chips-tech-stock-market-investing-sndk-mu-2026-5).\n\nSo, rampant AI demand is colliding with constrained supply. UBS analysts [noted this week](https://www.businessinsider.com/micron-stock-price-mu-ubs-forecast-rally-trump-2026-5) that memory makers are signing multi-year agreements with cloud giants that lock in both volume commitments and partially fixed pricing. That should add another layer of stability. UBS estimates these deals could keep the DRAM market undersupplied into 2028.\n\nOf course, this could still prove to be an unusually large up-cycle that eventually ends. The remaining players could flood the market again. New entrants could emerge. AI demand could cool, or a new technology might reduce the need for memory.\n\nBut investors clearly believe the old memory business may finally be becoming something new.\n\n*Sign up for BI's Tech Memo newsletter *[here](https://www.businessinsider.com/subscription/newsletter/tech-memo)*. Reach out to me via email at *[abarr@businessinsider.com](mailto:abarr@businessinsider.com)*.*", "url": "https://wpnews.pro/news/short-memory-the-most-dangerous-words-in-investing-are-back", "canonical_source": "https://www.businessinsider.com/ai-memory-chip-boom-bust-cycle-micron-2026-5", "published_at": "2026-05-29 18:45:50+00:00", "updated_at": "2026-05-29 19:14:34.545050+00:00", "lang": "en", "topics": ["ai-chips", "artificial-intelligence", "ai-infrastructure"], "entities": ["Micron", "Samsung", "SK Hynix", "Bill Joy", "Sun Microsystems"], "alternates": {"html": "https://wpnews.pro/news/short-memory-the-most-dangerous-words-in-investing-are-back", "markdown": "https://wpnews.pro/news/short-memory-the-most-dangerous-words-in-investing-are-back.md", "text": "https://wpnews.pro/news/short-memory-the-most-dangerous-words-in-investing-are-back.txt", "jsonld": "https://wpnews.pro/news/short-memory-the-most-dangerous-words-in-investing-are-back.jsonld"}}