The AI “siphon” effect is intensifying: structural market dynamics and differentiated procurement strategies in the second half of 2026.
Introduction
By mid-2026, the storage market has fully moved beyond the cyclical pattern of uniform price increases and decreases, giving way to a “structural differentiation” strongly driven by AI‑related demand. For procurement professionals, simply monitoring the ups and downs on third-party pricing platforms no longer carries much significance—what truly shapes cost management and supply security is a deep understanding of the technological roadmaps, capacity allocations, and vendor strategies across different storage categories. Drawing on real‑time data from leading manufacturers’ capital expenditures, wafer‑fabrication commitments, and end‑demand trends, this article outlines the market outlook for the second half of the year and offers actionable, differentiated guidance for procurement decision‑makers.
HBM: The capacity black hole continues to widen, and the seller landscape remains unshakable.
Since Since the mass shipment of NVIDIA’s H200 and B200 AI GPUs in 2024, the capacity and bandwidth requirements of high-bandwidth memory (HBM) per GPU have continued to rise. By the second half of 2026, HBM3E will have become the standard configuration for AI training servers, and the adoption of the next‑generation HBM4 is already well underway. Among Samsung, SK Hynix, and Micron, more than 60% of their capital expenditures for 2025–2026 will be allocated to advanced process technologies, TSV (through‑silicon via) packaging, and wafer‑fabrication capacity related to HBM. This reallocation has created a pronounced “capacity‑crowding‑out effect”: general‑purpose DDR5—also reliant on cutting‑edge DRAM processes—and certain NAND production lines that require comparable wafers are being forced to yield ground to HBM.
According to the manufacturer in According to the roadmap unveiled at the investor conference at the end of 2025, HBM capacity throughout 2026 will still fall short of meeting the surging demand from the AI market, with order visibility extending several quarters ahead. This suggests that HBM will continue to operate in a typical seller’s market, leaving little room for price softening. The focus of procurement should not be on “how to negotiate lower prices,” but rather on securing long‑term supply agreements (LTSA) as early as possible—either directly with manufacturers or through authorized distributors—while closely monitoring the pace of capacity expansion in advanced packaging technologies (such as TSMC’s CoWoS and Samsung’s I‑Cube) and complementary substrates like ABF carriers. Any bottleneck at any stage could disrupt the entire supply chain.
DDR5 vs. DDR4: The Divergent Logic Behind Their Polarized Trajectories
For server use DDR5 RDIMMs represent the second-largest driver of demand, after HBM. Supported by cloud providers’ expansion of AI inference server fleets and the replacement of mainstream servers, DDR5’s demand base remains robust. However, with most advanced DRAM production capacity already allocated to HBM, supply growth for DDR5 is severely constrained, leading to a “moderate price increase—easy to rise, hard to fall” trend in the second half of the year. In terms of procurement strategy, we recommend maintaining a healthy safety stock of 4–6 weeks: avoid panic buying, but also don’t count on any significant price‑cut windows—until HBM demand is fully satisfied, DDR5’s supply‑demand balance is unlikely to reverse.
DDR4, DDR3, and certain niche LPDDR4 memory products present a markedly different picture. These offerings primarily serve long-tail markets such as industrial control, automotive electronics, and networking equipment, where overall demand is shrinking slowly but steadily. To maintain profit margins, manufacturers are, on the one hand, curbing production to stabilize prices, while on the other, quietly upgrading aging DDR4 lines to DDR5 or transitioning directly to HBM. For procurement, the greatest risk no longer lies in price volatility, but rather… Product discontinued ( EOL) . If your company’s embedded systems or industrial control motherboards still heavily rely on DDR4/DDR3: It is imperative to promptly confirm the lifecycle of each specific memory chip model with suppliers, finalize alternative‑solution designs as early as possible, or decisively implement the Last Time Buy (LTB). In the long term, the price midpoint for DDR4 and DDR3 will trend steadily lower, but supply volatility remains the real “killer.”
NAND Flash/SSD: Enterprise-grade remains resilient, while consumer-grade faces pressure.
In the flash memory field, The massive data‑storage demands driven by AI training are fueling robust shipments of enterprise‑grade, high‑capacity QLC SSDs—such as 32 TB and above—and keeping prices relatively firm. By contrast, consumer‑grade SSDs and UFS flash memory for smartphones are experiencing a pronounced oversupply, owing to weak upgrade cycles in PCs and smartphones. While manufacturers like Kioxia, Western Digital, and YMTC have implemented production‑control measures, the continuous improvement in QLC yield and the move toward stacking more than 300 layers are driving down the cost per bit, resulting in a gradual downward trend across the consumer NAND market.
Procurement Strategy Recommendations Enterprise-level SSD manufacturers should decisively lock in the current price window for high-capacity models and consider negotiating quarterly or semi‑annual contracts with suppliers to secure better pricing through volume. Meanwhile, consumer‑grade and embedded flash memory can be procured on an as‑needed basis, allowing for lean inventory management; in the second half of the year, there is a strong likelihood of even more favorable cost opportunities.
Conclusion
By 2026, the core competency in storage procurement will have evolved from “price comparison” to “comparing the depth of information.” Establishing a dynamic mapping of original‑equipment manufacturers’ capacity to specific products and regularly cross‑validating product end‑of‑life (EOL) timelines and capacity‑allocation insights with multiple OEMs and authorized distributors is far more critical than obsessively monitoring the daily price‑fluctuation curves on third‑party quoting platforms. In today’s market, reshaped by AI‑driven “siphoning” effects, precise intelligence and sound judgment of technology roadmaps are the most robust moats for controlling costs and ensuring supply security.
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