Storage Giants Lose $43B Despite Record Profits and AI Boom

Woofun AI reports that a severe dislocation between fundamental performance and market valuation struck the global storage sector on July 28, as industry leaders SK Hynix, Samsung Electronics, and Micron saw their combined market capitalization plummet by nearly $43 billion in a single trading session.

The magnitude of this correction was unprecedented in recent memory, with SK Hynix and Samsung Electronics each shedding over 13% of their value, resulting in a collective loss of approximately $28 billion. In the United States, the sell-off extended to Micron, which declined by 8.85%, while SanDisk plunged 14.25%, Seagate dropped 8.53%, and Western Digital fell more than 6.9%, erasing an additional $14.8 billion from the U.S.-listed segment of the industry.

Historical context reveals the depth of this retracement, as SK Hynix has already fallen between 45% and 47% from its June peak, wiping out nearly $60 billion in market value. Micron Technology has similarly retreated more than 30% from its highs, while Japan’s Kioxia has seen its market capitalization shrink by nearly half within a single month, signaling a broad-based loss of confidence across Asian and American storage manufacturers.

This market violence occurred in stark contrast to the sector’s financial results, exemplified by Samsung Electronics, which on July 7 reported a preliminary second-quarter operating profit of 89.4 trillion Korean won, a year-on-year surge of 1,800% that surpassed the combined profits of 2023 through 2025 in a single quarter. Despite this historic earnings beat, Samsung’s stock plummeted over 10% intraday, dragging the KOSPI index down by nearly 5%, illustrating a complete decoupling of price from reported profitability.

SK Hynix and Micron presented similar anomalies, with SK Hynix announcing on the 29th a revenue of 79.3 trillion Korean won (up 257% year-on-year) and an operating profit of 60.5 trillion Korean won (up 557%), pushing its operating margin to 76%.

Meanwhile, Micron Technology reported quarterly revenue of $41.5 billion (up 346% year-on-year) as of May 2026, with gross margins soaring to 84.6% and free cash flow reaching $17.6 billion, leading management to assert that demand would outstrip supply until 2028.

Woofun AI data shows that the initial trigger for this volatility was structural arbitrage linked to SK Hynix’s ADR issuance, which enabled global portfolio managers to execute a "long ADR, short local stock" strategy. UBS noted in a report cited by Bloomberg on July 16 that buying the new American depositary receipt while selling Korean common stock appeared risk-free, while simultaneous regulatory changes by South Korea’s Financial Services Commission raised single-stock leveraged ETF margin thresholds from 10 million to 30 million Korean won and capped purchases at 20 shares, forcing automated deleveraging that caused SK Hynix to drop over 11% and Samsung over 8%.

A more critical variable is the growing investor skepticism regarding AI capital expenditure sustainability, highlighted when Google raised its full-year capex guidance on July 22 from $180–190 billion to $195–205 billion, yet saw its stock fall due to concerns over suppressed free cash flow and uncertain returns. Moody’s warned that the nearly $1 trillion annual AI arms race is forcing giants like Google, Microsoft, Amazon, and Meta to rely heavily on debt, with the top six cloud providers holding approximately $460 billion in direct debt, making the market sensitive to any shortfall in guidance. New Korea Securities analyst Kang Jin-hee noted that this risk aversion is compounded by concerns over the strengthening competitiveness of China’s storage industry.

Michael Burry’s short position strategy further amplified the downward pressure, as he disclosed on July 2 that he had initiated a short position on Micron Technology at $1051.87, adding to it on July 25 at $933.86 alongside shorts on Nvidia at $210.28 and the SOXX ETF. Burry’s thesis rests on three pillars: Micron’s 42-year history includes 34 declines of over 30%, with its current deviation from the 200-day moving average hitting a record high since 1984, surpassing the 2000 dot-com bubble peak; its long-term median return on invested capital is merely 4% with a 7% return on equity, leading to "capital destruction" in one-third of historical quarters; and he cites the Bank for International Settlements’ 2026 annual report to argue that demand is inflated by off-balance sheet financing, predicting a minimum 30% sector pullback.

Counter-arguments from bulls point to the sheer scale of recent mega-deals, such as the $500 billion agreement between SK Group and NVIDIA for HBM4 development, alongside collaborations with Microsoft and Anthropic totaling $750 billion, and Samsung’s $200 billion memorandum with Broadcom, creating a combined $950 billion in supply lock-ins. CoinCentral analysis suggests Burry is not betting on immediate demand collapse but on the consequences of massive capex, such as Micron’s $27 billion investment, which could seed a future downturn, while AMD’s acquisition of MEXT and Meta’s deals with SanDisk highlight ongoing efforts to secure memory supply despite cost pressures.

The ultimate driver of the crash is South Korea’s super-industry plan announced in June, where Samsung and SK Group committed 80 trillion Korean won ($51.6 billion) to build four new wafer fabs, aiming to double capacity within five years, alongside a 55 trillion Korean won HBM packaging hub, totaling 135 trillion Korean won ($88 billion), or 5% of Korea’s 2024 GDP. This expansion breaks the two-year discipline of supply control, with SK Hynix’s 2026 capex expected to jump 43% to 40 trillion Korean won and Micron’s doubling for fiscal 2026.

Morningstar analyst Jing Jie Yu warns of severe price erosion as these capacities come online from 2027 to 2028, a view echoed by AInvest, which sees a replay of the 2022-2023 oversupply crash. Although TrendForce notes that Samsung’s P5 fab will not reach volume production until the second half of 2027, and typical fab construction takes 18 to 24 months, the market is pricing in the end of the "sustainable high chip prices" illusion well in advance, setting the stage for a critical test in the 2027-2028 window.