Memory Chipmakers' Single-Quarter Profit Surpasses Big Five Tech Giants for the First Time
nashnova research
Five global memory chipmakers posted combined operating profit of roughly $204 billion in Q3 2026, surpassing the Big Five U.S. tech giants for the first time — AI investment is pushing profits from downstream buyers to upstream suppliers.
How big is the profit surge?
Kioxia, Samsung, SK Hynix, Micron and Western Digital's SanDi posted combined operating profit of ≈¥32 trillion, up roughly tenfold year-on-year.
The Big Five tech giants — Alphabet, Microsoft, Amazon, Meta and Apple — earned ≈¥25 trillion in the same period, up only ≈20%.
This means → memory makers overtook their biggest customers in a single quarter; the profit centre of the AI stack has shifted from the firms that buy chips to the firms that make them.
Who is making the most?
Kioxia's quarterly operating profit rose 23× YoY to ¥1.99 trillion; net profit rose 33× to ¥1.36 trillion, crossing ¥1 trillion for the first time.
In plain terms = a flash-memory company now earns on par with Toyota and SoftBank — Japan's most profitable corporates.
Samsung posted ≈₩107 trillion (≈$80.2 billion) in operating profit, becoming the first tech company ever to clear ₩100 trillion in a single quarter.
Samsung said its full-year 2027 capacity for HBM — high-bandwidth memory, the specialised DRAM built to sit next to AI processors — is already sold out.
Why did margins jump to nearly 70%?
Memory-chip operating margins leapt from the ≈10% range in H1 2025 to nearly 70%.
Chip prices have risen roughly tenfold over the past 18 months.
This reflects a severe supply-demand mismatch: AI data-centre demand for memory far outstrips what fabs can produce, driving prices and margins to historic extremes.
Who is funding this windfall?
Big Tech's heavy data-centre spending is the direct driver of memory makers' outsized profits.
Amazon's free cash flow turned negative last quarter, sending shares down sharply after hours; Alphabet's free cash flow also went negative again, triggering a notable sell-off.
In plain terms = the downstream giants are pouring cash into data centres, draining their own balance sheets — and that cash is flowing straight into upstream memory makers' pockets.
Can the super-cycle last?
Maito Yamamoto, chief analyst at Nippon Life Asset Management, noted: "Memory chipmakers' share prices will hinge on whether Big Tech can sustain its capital-spending pace."
This means → Big Tech's willingness to keep spending is the single most important variable for memory-sector valuations.
The core tension right now: Big Tech's cash flows are already under pressure, yet AI demand keeps expanding — any slowdown in spending would quickly compress memory makers' margins.
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