Bitcoin (BTC) Macro Watch: Samsung, SK Hynix Memory Inventories Fall Below 10 Days

Under 10 Days of Memory Stock

South Korea's two memory giants are running dangerously low on inventory, and the shortfall is shaping up as one of the defining supply stories for the AI buildout. A report issued on September 7 by KB Securities, the brokerage's research unit led by Kim Dong-won, estimates that Samsung Electronics and SK Hynix are holding less than 10 days of memory stock as of the third quarter. In the analyst's view, this is no longer a routine demand rebound but a scenario where sellable volume itself is being exhausted. AI servers are the drain: they absorb HBM while simultaneously pulling server-grade DDR5 and enterprise SSD (eSSD) demand, setting up what the report describes as a historic shortage cycle. The root cause sits on the spending side. Global hyperscale data center operators have sharply revised next year's AI infrastructure investment up to $1.3 trillion, a 60% year-over-year jump, because AI monetization has matured — cloud AI services, token-based billing, agentic models and agent-driven dApp-style ecosystems now generate direct revenue. KB Securities projects memory's share of that investment climbing from 14% in 2025 to 40% this year and 57% next year, a more-than-fourfold expansion in two years; TrendForce runs even hotter at 68%. The HBM4 transition compounds the squeeze, since producing it consumes roughly three times the wafer capacity of conventional DRAM, crowding out legacy output. The broker estimates next year's DRAM and NAND bit demand will exceed supply by more than 10 percentage points. Despite a 38% drawdown from recent highs, KB Securities calls both stocks severely undervalued relative to fundamentals, expects record earnings for three consecutive years and keeps them as its top semiconductor picks. Sentiment already turned: in the prior US session, SK Hynix's ADR (NASDAQ: SKHY) surged 8.14%, while Micron (NASDAQ: MU) added 6.10% and SanDisk (NASDAQ: SNDK) jumped 11.90%.

Kospi Extends AI-Driven Rally

Seoul's equity market confirmed the thesis in real time on Tuesday. The Kospi index rose 1.25% to 7,083.84 by late morning, stacking on top of Monday's advance of more than 4% — its sharpest single-day move in months — as investors positioned for AI-linked earnings to keep beating expectations. SK Hynix shares in Seoul jumped 3.65% to 1,848,000 won, while Samsung Electronics gained 1.48% to 274,000 won. State-run Korea Electric Power added 3.82% and refiner SK Innovation rose 1.6%, though Hyundai Motor and LG Energy Solution slipped, and the won firmed to 1,338.55 per dollar. Japan's Nikkei 225 fell 0.95% while the Kosdaq added 0.46%, underscoring how unevenly the AI trade is spreading across the region. Goldman Sachs strategist Timothy Moe maintains a bullish long-term Kospi target tied to the memory earnings recovery. Wall Street, back from the Labor Day weekend, faces a rougher session: Dow futures dropped 308 points, or 0.6%, and Brent crude climbed 1.1% to $97.31 a barrel — a six-week high — after the United States and Iran exchanged strikes over the weekend. Last week the 10-year Treasury yield hit its highest level since November 2023 and the 2-year touched a January 2025 high, and traders now price roughly a 60% chance of a quarter-point Federal Reserve rate hike at next week's meeting, with wholesale and consumer inflation reports due Thursday and Friday. Readers tracking the market in real time can follow live spot and futures prices on Gate.

Bitcoin's Macro Setup Into Fed Week

Our read: the memory sellout is the purest expression of how capital-intensive the AI cycle has become, and that matters for Bitcoin (BTC), which sits near $79K as rate expectations harden. A supply crunch this extreme signals sustained AI capex, but it also means the marginal dollar is chasing compute rather than risk assets — from Sahara AI (SAHARA)-style tokenized plays to rate-sensitive growth stocks such as Rocket Lab (RKLB). The KB Securities filing is the primary record here, and it frames the squeeze as structural, not cyclical. Even the ASIC fleets securing Bitcoin's consensus mechanism compete for advanced memory and wafer capacity. With a 60% hike probability priced in, Thursday's and Friday's inflation prints decide whether BTC's macro cushion holds.