Macronix International: Structural NAND Shortage Drives Underappreciated Pricing Power and ROE Expansion

Core Conclusion

Macronix (2337.TW) is positioned as a primary beneficiary of a deepening structural shortage in legacy NAND flash memory, specifically MLC and legacy TLC. The initial catch-up in pricing power is now evident in financial results, with a trajectory for sustained price increases and profitability expansion that current valuations do not reflect. We maintain our Overweight rating and view the stock as a top pick.

What the Market May Be Mispricing

The market appears to underestimate both the magnitude and duration of the price upcycle for legacy NAND, where Macronix holds a key supply position. Consensus likely undervalues the resulting earnings elasticity. Current P/B multiples of 4.7x for 2026e and 2.8x for 2027e are incongruent with projected annualized ROE reaching 52% and 65%, respectively, indicating a significant valuation discount to the earnings power inflection.

Evidence Chain

Pricing power is translating directly into financial outperformance. March revenue surged 46% month-over-month and 96% year-over-year to NT$4,421.9 million, while preliminary first-quarter revenue of NT$9,493 million exceeded both Morgan Stanley and consensus estimates by 6% and 4%. This performance is a direct result of implemented price hikes, with a further 19% sequential revenue growth forecast for the second quarter signaling sustained momentum.

A severe supply-demand imbalance underpins the pricing cycle. Customer inventories for legacy NAND cover only 6 to 9 months of demand, creating a critical shortage. We forecast the supply gap for MLC/legacy TLC to reach approximately 40% in the second half of 2026, driving a price increase of over 200% from the first quarter to the fourth quarter of 2026.

Macronix is the primary supplier positioned to capture this value. The company has emerged as the major supplier for these specific NAND products. As the dominant price setter in a tight market, Macronix will capture the vast majority of the pricing upside, directly translating into gross margin expansion and net profit acceleration.

Valuation fails to reflect the coming profitability surge. The stock trades at 4.7x estimated 2026 book value per share and 2.8x 2027e BVPS. This is against our forecast for annualized ROE to reach 52% in fourth-quarter 2026 and 65% in first-quarter 2027. The wide gap between low multiples and exceptionally high near-term return on equity signifies a substantial mispricing.

Key Divergences and Risks

The primary risk is a less severe legacy NAND supply-demand gap than anticipated, which would curb pricing power and profitability. A concurrent down-cycle in the NOR flash memory segment or demand weakness could provide a headwind. Slower-than-expected growth for Nintendo Switch hardware and related game titles also poses a demand-side risk to the thesis.

Valuation and Trading Implications

Our price target of NT$202 is based on a P/B valuation framework, applying a 7.0x multiple to our 2026e BVPS estimate. This target implies 48% upside from the current price of NT$136.5. The recommendation is Overweight. The anticipated combination of explosive earnings growth and ROE expansion should drive a material re-rating of the stock's valuation multiple.

Appendix Data Summary

Financial Forecast Summary

NAND Supply-Demand & Price Forecast