S&P raises Micron Technology rating to BBB with positive outlook

Micron Technology just collected another credit upgrade, with S&P Global Ratings lifting the memory chipmaker to BBB+ and assigning a positive outlook.

A year of upgrades

S&P upgraded the company to BBB from BBB- back in February 2026, citing robust performance driven by surging demand for AI-related technologies. The agency specifically pointed to Micron’s high-bandwidth memory (HBM) sales as a key driver of improved financials.

Fitch Ratings followed suit in May, upgrading Micron to BBB+ with a stable outlook. Fitch’s rationale centered on the company’s notable debt repayment efforts and a strengthened balance sheet. Later that same month, S&P reaffirmed its BBB rating with a positive outlook, acknowledging Micron’s sustained momentum amid growing AI-related market demand.

The AI memory trade

Micron is one of three major manufacturers of DRAM and NAND memory chips globally, and it has positioned itself as a leading supplier of high-bandwidth memory, the specialized product that powers the AI accelerators made by companies like Nvidia.

The company reported substantial year-over-year growth in fiscal Q1 2026, with AI product demand serving as the primary catalyst. Bank of America raised its price target for Micron to $1,550 in August 2026, reflecting confidence that the company’s AI-driven momentum has staying power.

What better credit means for Micron

A higher rating means Micron can borrow at lower interest rates, reducing its cost of capital. Some large institutional investors have mandates that restrict them to higher-rated bonds, so crossing rating thresholds can unlock new pools of capital.

Micron competes primarily with Samsung and SK Hynix in the memory market, both of which are also investing heavily in HBM production. Micron’s improved credit profile gives it more financial flexibility to invest in next-generation manufacturing capacity without overleveraging its balance sheet.

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