Prediction: Sept. 30 Will Be a Big Day for the Stock Market. Here Are 2 Stocks to Buy Hand Over Fist Before That

Micron's Sept. 30 fiscal Q4 2026 earnings and guidance are positioned as a catalyst for memory stocks amid projected HBM demand growth of 62% in 2027 and 69% in 2028, while DRAM demand is expected to outpace supply. The article cites estimates for Micron revenue to rise 90% to $247.5 billion and EPS to increase 116% to $158.93 in fiscal 2027, supporting a bullish view despite the stock's 551% one-year gain. Lam Research is presented as a secondary beneficiary, with memory-equipment capex projected to rise from $58 billion to $146 billion by 2027 and potential 142% upside by 2030 based on projected earnings growth.

Analysis

The actionable event is not simply a positive MU print; it is whether management raises its HBM mix, gross-margin trajectory, and supply discipline assumptions enough to support FY27 estimates. After a sharp pre-event rerating, a beat limited to near-term pricing is unlikely to sustain upside: investors need evidence that higher-value HBM displaces commoditized DRAM without creating a delayed capacity response. The article's cited MU revenue and EPS estimates are internally implausible and must be independently validated before using any valuation conclusion.

LRCX is a cleaner second-order beneficiary if memory makers convert pricing strength into leading-edge NAND/DRAM wafer-fab-equipment orders, but it is also exposed to the eventual capex overshoot. Its memory mix makes incremental order commentary disproportionately important over the next 1-3 months; a favorable MU guide can move expectations, while actual tool revenue typically follows with a multi-quarter lag. KLAC and ASML should participate in a broad capacity build, whereas LRCX has relatively greater sensitivity to memory process intensity and therefore greater downside if customers defer expansions.

Consensus appears to extrapolate scarcity too linearly. Higher HBM wafer consumption tightens near-term effective supply, but aggressive capex can normalize conventional DRAM/NAND pricing before new HBM capacity earns acceptable returns. The key falsifier over 6-18 months is not demand growth alone: it is whether industry capex rises faster than HBM-qualified output demand, reflected in falling contract prices, weaker MU gross-margin guidance, or reduced equipment order visibility.

Key Decisions for Investors

• Ahead of MU earnings, maintain only a tactical long MU position sized for event volatility; add only if guidance raises both HBM volume/mix and gross-margin outlook, rather than on an earnings beat alone. Exit the bullish setup on a sequential gross-margin guide-down or evidence of DRAM/NAND price concessions.
• Prefer a 1-3 month relative-value trade: long LRCX / short AMAT in matched beta-weighted notional after confirmation of stronger memory WFE spending. The thesis is Lam's greater memory leverage; stop out if Lam's memory order commentary fails to improve or AMAT guides stronger memory exposure.
• Avoid buying near-dated MU calls into the report without checking implied volatility versus post-earnings realized moves. If implied volatility is elevated, use a defined-risk call spread only after validated estimate data and a clear HBM guidance catalyst; otherwise wait for post-report direction.
• Set a monitoring trigger for MU contract-price commentary, HBM qualification/yield updates, and memory-maker capex revisions over the next two quarters. A broad capex acceleration without corresponding HBM demand commitments is a signal to reduce LRCX exposure and consider short SOXX versus a more diversified AI infrastructure basket.