Summary of Key Points
This week, storage chip stocks (such as Micron, SK Hynix, and Samsung) experienced significant volatility: they rebounded the previous day due to institutional upgrades in target prices but tumbled the next day following Buffett's warnings about AI speculation and GF Securities Hong Kong's downward revision of DRAM price forecasts. The core issue lies in the fact that although the fundamentals of the storage industry (such as Micron's financial reports and long-term orders) are strong, factors such as supply expansion (major companies increasing production), reduced demand specifications (customers cutting memory capacity), and high market speculation are undermining investors' confidence in maintaining high prices.
Breakdown and Interpretation
Why Did Buffett's Remark Cause Storage Stocks to Plunge?
Buffett did not name any specific company, but his statement that "AI-related speculation is rampant and it's difficult to find true value" hit the nail on the head of storage stocks' recent problems. Many investors are focusing more on short-term market trends rather than long-term fundamentals, betting on price movements based on AI-related news. For example, Micron's stock price fluctuated wildly this week: it fell 4.3% on Monday, rose 4.7% on Tuesday due to institutional forecasts of a storage shortage until 2027, and then plummeted to $865 on Wednesday after Buffett's remarks. Similarly, SK Hynix, which went public on NASDAQ last week, saw its shares soar initially due to the CEO's claim that customers were shifting their investments to storage products but later faced selling pressure due to concerns about production expansion driving down prices. These reactions reflect a speculative mindset, and Buffett's comments effectively doused this enthusiasm, causing market sentiment to reverse instantly.
What Does It Mean When DRAM Price Hikes Face Resistance from Customers?
DRAM is the most commonly used type of memory in devices like computers and servers. Institutions previously expected prices to rise by 30% in the third quarter, but GF Securities Hong Kong revised its forecast downward due to customer resistance to such increases. This indicates that buyers are gaining bargaining power, as they feel the price hikes are excessive. More importantly, demand is also shifting: for instance, servers that originally required higher-capacity DDR5 memory may now use half that amount; in extreme cases, NVIDIA's AI-related memory requirements have been reduced by a quarter (costs dropping from $1.2 million to $290,000). This suggests that actual demand for DRAM may be lower than expected, preventing prices from rising.
Why Have NAND and HBM Become New Points of Disagreement in the Market?
Despite the cautious outlook for DRAM, some institutions are optimistic about NAND and HBM, leading to divergent views in the market:
- NAND: This is the flash memory used in smartphones and solid-state drives. There are two positive factors: the trend of replacing expensive DRAM with NAND (saving costs) and the higher-than-expected demand for KV cache in AI applications. As a result, GF Securities Hong Kong is bullish on NAND, with KeyBanc predicting a 30-40% price increase in the third quarter.
- HBM: This high-speed memory is specifically designed for AI chips, and both Micron and SK Hynix are suppliers to NVIDIA. KeyBanc expects HBM prices to double next year due to strong AI demand and limited supply.
This divergence has created a split in market sentiment: investors are buying stocks related to NAND and HBM while selling those related to DRAM.
Why Has the Premium on SK Hynix' ADR Become a Problem?
ADR (American Depository Receipts) represents foreign companies listed in the U.S. stock market. On Wednesday, SK Hynix' ADR fell 9%, while its local Korean shares rose 8.8%. This was due to the high premium on ADRs: after a sharp increase on Tuesday, the valuation of ADRs approached that of Micron's shares, which had previously made ADRs more attractive to investors. More importantly, South Korea will introduce a two-way conversion system between local stocks and ADRs on July 29th, allowing investors to exchange overpriced ADRs for cheaper local shares, potentially eroding the premium. As a result, holders of ADRs are rushing to sell before the change takes effect.
Despite Strong Fundamentals, Where Lies the Cyclical Risk?
Micron's latest financial report was impressive, with revenue increasing by 346% and net profit rising 14-fold, along with a $22 billion in long-term orders (with price guarantees). However, the storage industry is cyclical: prices rise when supply falls short of demand and fall when supply exceeds demand. All three companies (Micron, SK Hynix, and Samsung) are expanding production significantly (with Micron investing $27 billion this year). If supply catches up with demand, the current high prices may not be sustainable. The main concern is whether the assumption that the current supply shortage will last longer than in previous cycles holds true; if not, the good times for storage stocks might be coming to an end.
Conclusion
The volatility in storage chip stocks reflects a clash between short-term market sentiment and long-term fundamentals. Buffett's comments have dampened speculative enthusiasm, while challenges to DRAM price hikes and reduced demand specifications have exposed underlying concerns. The divergence around NAND and HBM, along with the premium on ADRs, has added to market confusion. Although the fundamentals are still strong, the threat of a cyclical downturn looms over the industry. The future direction will depend on which factor—supply expansion or demand changes—will be faster.