Citi: Micron: AI drives memory demand, but capacity bottlenecks may persist through 2028

Why might supply remain tight for longer?

Citi believes AI demand from hyperscale cloud providers is accelerating and that the market underestimates the extent of supply constraints on DRAM and high-bandwidth memory (HBM). The bank expects supplies of HBM and advanced memory to remain tight into 2027 and 2028.
Density gains from process upgrades are diminishing: approximately 25% at the 1-delta node, compared with 30%–40% at the earlier 1-gamma and preceding nodes. HBM production also consumes more wafer capacity, so DRAM bit supply growth is only slightly above 20%.
Significantly easing supply constraints requires building new wafer fabs, but new capacity takes a long time to bring online, and cleanroom space is also a constraint; construction spending is approaching 50% of Micron's capital expenditure.

Micron expects the DRAM supply-demand environment to be tighter in 2027 and 2028 than in 2026. By 2030, strategic customer agreements cover 35% of sales, and the company aims to raise that to about 50%; among business outside strategic agreements, approximately 75% is already contracted through 2027.
The company expects the HBM market to grow faster than the overall DRAM market, but the margin gap between HBM and DRAM will narrow next year. Tight demand has also prompted some products to reduce their memory configurations, allowing limited DRAM supplies to be allocated to more accelerators.

Micron's management said AI demand and high-value products such as HBM, data-center DRAM and SSDs give the company substantially greater cash-generation capacity than in previous memory cycles.
The company expects capital expenditure to rise significantly in fiscal 2027 for technology upgrades and manufacturing expansion; Citi estimates it at around 55 billion dollars. Despite higher spending, Micron still expects to generate substantial free cash flow in a favorable industry environment.
Micron recently authorized a 35.2 billion-dollar share repurchase program and plans to increase shareholder returns from December 2026, after restrictions related to the CHIPS Act expire.

Citi has a buy rating and a 1300-dollar price target for Micron, equivalent to approximately 8 times expected earnings per share for calendar year 2027. The bank believes the current pricing environment and the emergence of strategic customer agreements support a valuation slightly above the trading range seen in previous DRAM upcycles.
This assessment depends on whether supply and demand remain aligned: if demand fails to keep pace after manufacturers expand capacity, or too many DRAM and NAND bits are placed into the channel, inventory adjustments and price declines could cause results to fall short of Citi's expectations.