Strong earnings by memory giants contrast with module makers as DRAM supply tightens.

Major domestic memory manufacturers have recently released third-quarter financial results, delivering impressive performances led by benchmark companies such as Nanya Technology, whose earnings reached new cyclical highs. However, looking downstream across the memory industry supply chain to module makers, the market is not entirely buoyant; instead, a clear divergence in profitability has emerged. Amid dynamic shifts in upstream manufacturers' capacity allocation and market demand, industry observers widely anticipate that market conditions will polarize further. The supply crunch in dynamic random-access memory (DRAM) could become even more severe in the first half of next year, prompting some downstream module makers to hold back inventory in preparation for future market shifts.

A closer look at this industry divergence reveals that it largely stems from differing supply-demand dynamics across product lines. Market observations indicate that the trajectories of DRAM and NAND flash memory are sharply contrasting. While DRAM faces structural shortages driven by strong demand from servers, mobile devices, and automotive applications, the outlook for NAND flash remains comparatively subdued. This divergence directly reflects on module makers' financial statements. Due to differences in procurement costs, inventory levels, and product portfolios, some module makers are benefiting from rising prices, while others are burdened by higher costs that cannot be easily passed on to end customers, creating an unusual disparity in earnings performance.

Looking ahead, industry sources have issued clear warnings that DRAM supply shortages are unlikely to see a fundamental resolution in the short term and may even worsen in the first half of next year. The primary driver is that major upstream memory manufacturers have redirected significant portions of their limited capital expenditures and production capacity toward high-value-added products like High Bandwidth Memory (HBM) to meet the massive computing demand unleashed by artificial intelligence. This strategy has crowded out output for conventional DRAM, widening the supply gap for standard products. When upstream supply fails to meet market demand, downstream price volatility and scrambles to secure components become inevitable.

Confronted with an impending severe shortage, module makers in the middle of the supply chain are adjusting their operational and sales strategies. It is understood that some market-savvy module makers have begun adopting a strategy of holding back sales. Rather than offloading large volumes of inventory to downstream clients all at once, these firms are releasing stock in limited batches or selectively supplying preferred clients. This approach allows them to preserve their reserves against potentially higher replenishment costs in the future. By doing so, companies can safeguard their gross margins during the shortage while hedging against the risk of running out of inventory if prices continue to surge.

From a broader industry perspective, the DRAM supply-demand imbalance and the inventory-withholding tactics of downstream module makers underscore the highly concentrated and fragile nature of the current global semiconductor supply chain. As AI technology continues to