Micron Technology Inc. (MU) just dropped a third-quarter earnings report that can only be described as a blowout, and the entire memory and storage complex is riding the wave. Shares of SanDisk Corp. (SNDK), Western Digital Corp. (WDC), and Seagate Technology Holdings PLC (STX) all surged in after-hours trading Wednesday as investors read Micron's numbers as confirmation that the upcycle in memory, NAND, and broader storage demand remains firmly intact.

Micron Q3 Details

Revenue surged to $41.46 billion, far ahead of analyst expectations near $35.6 billion, while adjusted EPS jumped to $25.11, topping forecasts of roughly $20.60 per share, according to market data. Year-over-year revenue growth of about 346% highlights how rapidly demand for high-bandwidth memory and advanced DRAM is hitting the balance sheet. Robust operating cash flow of $25.39 billion and adjusted free cash flow of $18.3 billion give Micron considerable firepower to keep investing aggressively in capacity and technology.

The Outlook

The forward guidance is what really ignited enthusiasm across memory peers. Micron projected fourth-quarter revenue of $50 billion, plus or minus $1 billion, versus consensus estimates near $42.95 billion. It also guided for adjusted EPS of $31 per share, plus or minus $1, compared with expectations around $25.50. Wall Street often treats Micron as a bellwether for the broader memory and storage complex, so its strong print and outlook naturally spilled over into SanDisk, Western Digital, and Seagate. These companies supply NAND flash and HDD solutions that sit alongside DRAM and HBM in data centers and edge infrastructure, so improving pricing and volume trends in Micron's core markets typically foreshadow better fundamentals for them too.

Price Action

SanDisk shares were up 11.58% at $2,136.05 and Seagate shares were up 8.91% at $1,081.71 during after-hours trading on Wednesday, according to market data. Western Digital shares were up 10.98% at $714, and Micron shares were up 14.92% at $1,208.95 during after-hours trading on Wednesday.