AI Storage Demand Spurs NAND Upside for Lam Research, But Valuation and China Risks Persist

What happened

A Zacks article reports that AI-driven storage demand is boosting NAND prospects for Lam Research, with its served market per wafer set to double from 128 to over 500 layers. This technological shift could increase the intensity of deposition and etch steps, directly benefiting Lam's systems revenue. However, Lam's recent 10-Q shows memory growth is still primarily DRAM-driven, and NAND upside is not yet evident in financials. Moreover, the stock trades at a steep 81x earnings, with China representing 34-37% of revenue and facing export-control risks. Therefore, while the news is positive, it does not alter the WAIT rating from the DeepValue master report.

Implication

The NAND layer transition could provide a multi-year tailwind for Lam's etch and deposition tools as customers add more stacks. However, this upside is not yet reflected in Lam's order book, and the company's guidance for next quarter implies continued strength but no NAND-specific breakout. Meanwhile, the stock's P/E of 81 and EV/EBITDA of 85 leave little margin for error if AI-driven memory spending disappoints or export restrictions tighten. The master report's bear case values the stock at $330, highlighting the downside risk from China policy shifts. Until signs of NAND-driven revenue acceleration appear alongside stable China mix, a WAIT stance with an attractive entry near $360 is prudent.

Thesis delta

The thesis shifts marginally positive on the NAND demand angle, as doubling layer counts could expand Lam's served market over time. However, this does not change the near-term WAIT rating because the market already prices a strong AI upcycle and China exposure remains a significant overhang. The primary thesis remains that investors should wait for a better entry or clearer evidence of broad-based demand before adding exposure.