Micron Technology is poised to report a staggering 940% year-over-year increase in earnings per share for its fiscal fourth quarter, a surge that could position the memory-chip maker as the single largest contributor to S&P 500 earnings growth, potentially overtaking Nvidia's dominance in driving market-wide profit expansion.
Analysts tracked by FactSet expect the Boise-based company to post EPS of $8.57 for the quarter ended August, compared to $0.82 a year earlier. If those forecasts hold, Micron would become the biggest single driver of S&P 500 earnings growth for the first time in at least two and a half years, according to data from Seaport Research Partners.
Micron as an AI barometer
Micron's stock has already climbed 243% this year, pushing its market capitalization to roughly $1.2 trillion. The shares have been volatile over the past three months, reflecting both optimism about AI-driven demand and worries about the sustainability of the massive capital expenditure cycle in data centers.
Investors increasingly view Micron as a bellwether for two intertwined themes: the durability of AI spending and the concentration of market leadership among a handful of tech giants. "When you have leadership that's this narrow, it stops being company-specific, and the report becomes a market event in and of itself," said Jake Behan, head of capital markets at Direxion, in a note to MarketWatch. He added that Micron's stock has "become a referendum on the health of the AI build-out."
Jacob Bourne, a technology analyst at Emarketer, noted that Micron's results "should offer a useful indication of whether strength is broadening beyond AI infrastructure." That question is critical for investors weighing whether the enormous spending on AI data centers will eventually translate into broader corporate earnings growth.
Memory pricing power
Micron's rising influence on the S&P 500 reflects a dramatic improvement in the memory-chip industry. In the third quarter of last year, Micron ranked as the ninth-largest contributor to S&P 500 earnings growth, according to FactSet. It moved to sixth in the fourth quarter and third in the first half of this year as the memory supply crunch intensified.
FactSet currently projects S&P 500 earnings to increase 29.1% in the third quarter. Excluding Micron, that growth rate would fall to 24%, underscoring the company's outsized impact. "Even if you threw Micron out of the S&P, the earnings growth is still insanely good," said Jonathan Golub, chief investment strategist at Seaport Research Partners.
JPMorgan notes that semiconductor companies, including Nvidia, make up 20% of S&P 500 market capitalization but contributed to 40% of total earnings growth in the second quarter. Micron's fiscal third quarter corresponds to the calendar second quarter for most other companies, since its fiscal year ends in September.
Wall Street expectations rise
Analysts have grown more bullish ahead of the report. Citi's Atif Malik raised his price target on Micron to $1,300 from $1,150, citing stronger DRAM pricing and continued tight supplies of memory and storage products amid AI infrastructure expansion. The new target implies about 20% upside from Friday's close.
Malik expects Micron to beat its fiscal fourth-quarter estimates as DRAM and NAND markets remain tight. DRAM prices rose more than 60% in the quarter, while NAND prices climbed over 80%.
JPMorgan reiterated its Overweight rating and $1,540 price target, anticipating that Micron will raise its November-quarter guidance. The firm points to stronger aggregate demand signals from customers, management's expectation that supply conditions will be tighter in 2027 than in 2026, and continued momentum in the HBM4 ramp-up. Micron has already shipped more than $1 billion worth of HBM4 as of the May quarter.
Options signal big move
The options market implies a post-earnings move of roughly 8% to 10%, equivalent to about $87 to $108 based on the current stock price. That potential swing highlights the report's significance beyond Micron itself, as investors look for clues on whether AI infrastructure spending is translating into sustained pricing power and earnings growth.
Micron's report arrives before the broader third-quarter earnings season accelerates next month, making it one of the first major indicators of how AI-related semiconductor demand is affecting corporate profits.
This article is for informational purposes only and does not constitute financial advice.
