Woofun AI reports that Citibank’s July 24 Global Semiconductors report confirms the storage upcycle remains intact, driven by critically low NAND and DRAM inventories and expanding AI server demand for KV Cache and GPU-adjacent storage.

Market controversy centers on weakening Chinese smartphone demand, which threatens consumer-grade NAND prices, and rising channel inventories that suggest the price surge may be ending.

However, the report "Global Semiconductors: Reality Check: Memory Upcycle Intact on Tight Inventories and Strong KV Cache Demand" analyzes suppliers, cloud providers, and channel inventories collectively, concluding the supply chain has not entered a loose state.

NAND inventory data for Q3 2026 reveals supplier stock at 2.6 weeks, well below the normal 5 weeks. Major cloud providers hold 3 weeks of inventory against a 7-week norm, while channel inventory sits at 5 weeks compared to the typical 15 weeks. This scarcity limits spot market releases and reduces the risk of channel dumping, even as consumer demand shows signs of weakening.

DRAM inventory mirrors this tightness, with supplier stock at 2.7 weeks versus a 5-week normal. Cloud vendor DRAM inventory is 2.5 weeks, below the 7-week benchmark, and channel inventory is 4 weeks against a 15-week standard. These figures refute the argument that smartphone demand weakness alone can trigger an oversupply state in either DRAM or NAND.

The current upswing differs from traditional cycles due to new AI server demand for CMX and QLC SSDs. CMX, or Context Memory Storage Platform, is driven by NVIDIA’s BlueField-4 for pod-level context and KV Cache storage layers. QLC SSDs provide high-capacity storage near GPUs to enhance AI computational efficiency, creating distinct demand drivers separate from consumer electronics.

Woofun AI data shows that KV Cache functions as a 'context cache' in large model inference, storing intermediate states and historical information to avoid redundant calculations as AI Agent task chains lengthen. This increases memory and storage requirements beyond GPU power. NVIDIA’s Vera Rubin platform exemplifies this, with industry calculations suggesting 16TB TLC SSDs could yield 1,152TB per system, providing PB-level shared capacity for GPU pods.

Quantifying this impact, Citigroup estimates CMX will drive 34.6 billion and 115.2 billion 8Gb equivalent units of NAND demand in 2026 and 2027, respectively. This represents 2.8% of global NAND demand in 2026 and 9.3% in 2027, a significant share that alters the supply-demand balance despite being a model assumption rather than company guidance.

While Chinese smartphone shipments remain a key end market, low inventory levels limit the buffer for demand fluctuations. The supply-demand balance for DRAM and NAND suppliers has dropped from 70% to 50%, reducing excess capacity. Consequently, smartphone weakness is more likely to slow price increases rather than reverse the cycle, as cloud providers and AI servers continue to purchase against low inventory.

Differentiating demand sources, consumer-grade NAND is tied to smartphones and PCs, while enterprise and AI-related SSDs depend on data center construction, GPU cluster expansion, and model inference requirements. This divergence supports bullish outlooks for Korean storage stocks, with Citigroup raising Samsung Electronics' target to 530,000 Korean won and maintaining a buy rating, while SK Hynix retains a buy rating with a 3,100,000 Korean won target.

Risks remain, including HBM shipment delays for Samsung, PC sales weakness, competitor investments, and Korean won appreciation, while SK Hynix faces DRAM downturns and global consumption slowdowns. These factors confirm storage remains capital-expenditure driven, yet the current inventory constraints—NAND at 2.6 weeks, DRAM at 2.7 weeks, and low cloud provider stock—indicate the cycle has not peaked. The market’s focus on consumer noise overlooks sustained AI investments and tight inventory, making it difficult to assess the storage cycle through the traditional smartphone lens. Welcome to join the official BlockBeats community: Telegram Subscription Group, Telegram Discussion Group, or Twitter Account.