NAND

A type of non-volatile storage technology that retains data even when power is turned off, widely used in SSDs and smartphones.

NAND flash memory is a type of non-volatile computer storage technology that retains data even when its power source is switched off. This makes it the industry standard for permanent data storage in solid-state drives (SSDs), smartphones, memory cards, and USB drives. Unlike volatile Dynamic Random-Access Memory (DRAM), which is used for temporary, high-speed system tasks and clears when powered down, NAND is designed for long-term data retention. NAND is manufactured on silicon wafers in highly specialized semiconductor fabrication plants. Because the technology requires massive capital expenditure to build and maintain these facilities, the industry is highly capital-intensive. To increase storage capacity and lower the cost per gigabit, manufacturers continuously transition to advanced architectures, such as stacking memory cells vertically in multiple physical layers (3D NAND). For investors, the NAND market is a critical, highly cyclical barometer of the broader technology sector. Because supply cannot be adjusted instantly, the market frequently swings between periods of severe oversupply (which triggers price wars, inventory write-downs, and margin compression) and supply deficits (which drive rapid profitability turnarounds for memory chipmakers). Investors closely monitor industry capital expenditure, factory utilization rates, and average selling prices to gauge where the sector sits in the market cycle.

A semiconductor manufacturer produces 3D NAND at an average cost of $0.06 per gigabyte. Due to an oversupply of smartphones in the market, the average selling price of NAND drops from $0.08 to $0.05 per gigabyte. Despite selling the same volume of 100 million gigabytes, the company's gross profit on this product line swings from a gain of $2,000,000 (($0.08 - $0.06) 100,000,000) to a loss of $1,000,000 (($0.05 - $0.06) 100,000,000).