Stock Market Update

18-Dec-25 10:30 ET
Micron posts blowout earnings report
Dow +326.15 at 48211.91, Nasdaq +369.89 at 23063.24, S&P +78.03 at 6799.45

[BRIEFING.COM] The S&P 500 (+1.1%), Nasdaq Composite (+1.6%), and DJIA (+0.7%) continue to tick higher following a strong opening this morning.

Micron (MU 247.68, +22.16, +9.83%) delivered a historic performance for 1Q26, solidifying its position alongside NVIDIA (NVDA 173.24, +2.30, +1.35%) as a dominant force in the AI ecosystem. The company shattered estimates for both revenue and earnings while providing a Q2 outlook that far exceeded market expectations.

The blowout results have provided a significant lift to peer memory and storage stocks, including Sandisk (SNDK 221.39, +14.56, +7.04%), Seagate Tech (STX 288.27, +10.62, +3.82%), and Western Digital (WDC 176.32, +10.06, +6.05%), as the market recognizes a broad structural shift in data storage demand driven by AI.

The centerpiece of the report was the massive expansion in non-GAAP gross margin, which rose to 56.8% from 45.7% a year earlier. Guidance for Q2 projects a further leap to 68.0% (+/- 1.0%), driven by high-value products and extreme supply tightness. Revenue in the Cloud Memory segment surged by 99% year-over-year to $5.28 billion, fueled by the rapid build-out of AI infrastructure by data center customers.

Micron has effectively silenced any remaining doubts regarding the durability of the AI-driven memory cycle. By delivering record-breaking results and guidance that wasn't in the same orbit as prior estimates, the company has transitioned from a cyclical recovery story to a secular growth powerhouse. While traditional consumer segments like PCs and smartphones remain more balanced, the shift toward AI-heavy configurations is creating a pricing floor that benefits the entire industry.

Cookies are essential for making our site work. By using our site, you consent to the use of these cookies. Read our cookie policy to learn more.