The memory.koreainvestinsights.com custom domain is now live. 'Memory Pulse' is a real-time signal dashboard built around Samsung Electronics and SK hynix. Korea-time-anchored executive summary, market snapshot, Samsung / hynix company cards, signal drivers (US semiconductor read-through, FX, macro risk, memory-cycle proxies), and a sortable instrument-moves table — all in one screen. Every data point carries a Live / Delayed / Fallback / Missing freshness label for transparency. The blog's analysis explains 'why' on a quarterly / weekly horizon; the dashboard shows 'right now.' Direct links to the HBM Hub, Daily Market Hub, Telegram, and Substack.
Samsung Electro-Mechanics crossed KRW 3 trillion in quarterly revenue for the first time. 1Q26 revenue KRW 3.21T, operating profit KRW 280.6B. AI-server MLCC and FC-BGA package substrates are entering a phase where price, volume, and utilization rise together. SEMCO does not make chips. It makes the 'power-stability components (MLCC)' and 'substrates that connect chips to motherboards (FC-BGA)' that AI silicon needs to actually work inside a server. This article dissects the three divisions — Component, Package Solution, and Optics — to explain why this company is being rerated from a 'smartphone parts maker' to an 'AI infrastructure parts platform,' and what expectations are already priced into the current KRW 1.02 million share price.
Samsung Electronics' union has announced an 18-day general strike starting May 21. Loss estimates range from KRW 21 trillion to as high as KRW 100 trillion. At the same time, contract DRAM prices are rising +58–63% and NAND +70–75% in 2Q. JP Morgan maintained an Overweight call with a KRW 350,000 target, arguing that 'price gains offset strike losses.' Is that logic right? Short-term production loss is mathematically offsettable. Structural changes to labor cost and customer-trust damage are not. The real issue is not 'will the strike happen' but 'how the excess profit of the memory supercycle gets divided between workers and shareholders.'
Who actually makes money when AI silicon sells? It is not just the GPU and HBM makers. The 'back end' also has major winners. Two regions matter — substrates and test sockets. Both are grouped under 'AI back-end,' but the investment structures are completely different. Substrates are a direct CAPEX beta on AI-server build-out. Volumes rise, packages get bigger, ASPs lift. Short-term momentum is strong: Daeduck Electronics 1Q26 OPM 14.8%, Samsung Electro-Mechanics package solutions revenue +45%. Test sockets are a high-margin consumables beta on chip complexity. As chips get more complex, testing gets harder, and the sockets have to be remade. ISC 1Q26 OPM 35%, AI revenue 81% of total. LEENO Industrial OPM 47%. Same AI tailwind, but the margin structures differ by ~3x. Don't lump the two as one 'AI theme.' For 3–6 month momentum, substrates. For 1–2 year holding, test sockets.
Pearl Abyss said on its 1Q26 call that it is 'exploring various ways including DLC' for Crimson Desert. Foreign outlets reported it as 'DLC confirmed,' the market twitched, and then sold off. Even after a record quarter (revenue KRW 328.5B, operating profit KRW 212.1B), the stock stayed weak. But the meaning of the DLC comment is being misread. The point is not 'KRW 60B in DLC revenue.' The point is that Crimson Desert is being proven as a recurring-revenue franchise IP rather than a one-shot package game. The real reason the market is applying a single-digit PER to Pearl Abyss is the assumption that '2026 base-game revenue is real, but 2027 is a cliff.' If DLC is formalized, that assumption breaks. The reclassification — package-game maker → franchise-IP holder — moves the multiple far more than KRW 60B of incremental revenue moves EPS.
On May 15, the KOSPI crashed -6.12% — the day right after it breached the 8,000 all-time high. KOSDAQ fell -5.14%. The sell-side circuit breaker fired. On days like this, the temptation is to hunt the names that did NOT fall in search of the next leadership stock. Hana Micron +18.6%, Jeju Semiconductor +8.9%, Samsung Electro-Mechanics -1.4% (RS vs index +4.7pp). Relative-strength (RS) names clearly exist. But you cannot simply treat them as 'Monday buy candidates.' The real read is the macro gate — US 10-year 4.46%, Brent 108, USD/KRW near 1,500, VIX 18.6 — and unless at least two or three of those settle, chasing even good RS names is inefficient. The next leadership stocks are not found AFTER macro recovers; they are the names that did NOT fall WHILE macro was bad, recorded, and bought ONCE macro recovers.
Markets convulsed between May 14 and 15. US April CPI +3.8% YoY, PPI +6.0% (the largest since 2022). Japan April PPI +4.9%, JGB 10-year at 2.55% (highest since 1997). US 10-year 4.46%, 30-year 5.02%. Brent 108 USD. The Strait of Hormuz is functionally closed. The Xi–Trump summit ended in a 'small deal.' Markets read these as separate stories: an Iran story, a US-CPI story, a Japan-BOJ story, a US-China story. They are not five independent events. They are one cycle. Iran/Hormuz is the origin. Oil is the first transmission. US inflation is the second. US long rates are the third. Japan's BOJ is the fourth. A higher global discount rate is the terminus. The US-China summit is a side variable that accelerates or delays the cycle, not its cause. Once you see the picture, you can trace where the next headline will land in other asset classes.
Jeju Semiconductor reported 1Q26: revenue ₩180.5bn (+273% YoY), OP ₩67.1bn (+1,713%), OPM 37.2%. The stock closed limit-up +28.4% on May 14. This is not an AI-server HBM business. Jeju is a fabless memory designer for IoT, mid-tier smartphones, and automotive electronics — MCP and LPDDR. So why the earnings explosion? With Samsung, SK hynix, and Micron concentrating fab capacity on HBM, supply of 'ordinary memory' (LPDDR4X, legacy DRAM) tightened while IoT / smartphone / auto demand kept running — and prices rose. The single test now: is this earnings level repeatable, or was 1Q the cycle peak? If 1Q is the peak, the current price is rich. If 2Q sustains it, the price is still attractive.