@jukan05 jukan05
Pseudonymous deep semiconductor supply-chain analyst mapping AI memory and compute bottlenecks
Produces original, primary-sourced analysis of the global se
Grade = how their written analysis reads (A best). Trader score = how their last-20 timestamped calls performed vs SPY. · Analyst brief as of 2026-06-22.
Across their last 20 scored bets: 75% hit rate, +0.91% mean alpha, trader score +1.58. Their last-14d mentions, direction-adjusted, have moved -3.0% since posting (mean over 84 mentions with price data).
Author is focused on AI hardware scarcity: MLCC, CCL, glass fiber, InP, CoPoS/PLP, HBM, NAND and DRAM pricing. The distinctive read is that upstream bottlenecks and Korean supply-chain shifts matter as much as GPU demand, with bullish bias toward NVDA-linked demand and memory upside while flagging policy/regulatory risks. Late-week focus moved toward memory pricing, Micron upside, Nvidia NAND demand, and Korea export data.
Conviction is concentrated in AI hardware bottlenecks, especially NVDA-linked substrates, passives, glass, CCL, NAND and HBM packaging. The author added a late-week memory push with Korea export data, DRAM spot strength, and Micron upside, while also surfacing bearish or cautious notes on ASML regulatory risk, AAPL NAND cost pressure and QCOM management. Pump-risk is highest in NVDA-linked supply-chain narratives because it is the most repeated named ticker across themes.
| date (PT) | ticker | author | sent | what they said | since then | receipt |
|---|---|---|---|---|---|---|
| 2026-07-03 | · | @jukan05 | · | UBS raises DRAM and NAND price forecasts with QoQ increases for Q3 and Q4. | · | tweet ↗ |
| 2026-07-03 | · | @jukan05 | · | Tech Taiwan reports TSMC CoPoS mass production timing and substrate suppliers sampling glass-core substrates. | · | tweet ↗ |
| 2026-07-03 | META | @jukan05 | +0.25 | Report says Meta chose Samsung Foundry for next-gen MTIA and details AI ASIC supply-chain implications. | — | tweet ↗ |
| 2026-07-03 | META | @jukan05 | +0.20 | Sedaily says Samsung Foundry is in talks with Meta on a $6.54B MTIA chip contract. | — | tweet ↗ |
| 2026-07-02 | · | @jukan05 | · | TrendForce forecasts Q3 DRAM +13-18% and NAND +10-15% QoQ on AI demand. | · | tweet ↗ |
| 2026-07-02 | META | @jukan05 | +0.10 | Report says Samsung is targeting up to 20% Q3 DRAM ASP hike amid AI-driven shortages and LTAs. | — | tweet ↗ |
| 2026-07-02 | MU | @jukan05 | +0.35 | Report says Samsung is targeting up to 20% Q3 DRAM ASP hike amid AI-driven shortages and LTAs. | — | tweet ↗ |
| 2026-07-02 | · | @jukan05 | · | ZDNet Korea headline says Samsung is pushing for a 20% QoQ DRAM ASP hike in Q3. | · | tweet ↗ |
| 2026-07-02 | INTC | @jukan05 | +0.40 | HSBC raises its Intel price target to $200. | — | tweet ↗ |
| 2026-07-02 | INTC | @jukan05 | +0.45 | Claims INTC 18A yield issues are fixed. | — | tweet ↗ |
| 2026-07-02 | · | @jukan05 | · | Discusses Anthropic-Samsung Foundry packaging news and implications for packaging suppliers. | · | tweet ↗ |
| 2026-07-02 | · | @jukan05 | · | Says Samsung Foundry demand is strong, capacity tight, and prices may rise 15-20%. | · | tweet ↗ |
| 2026-07-01 | · | @jukan05 | · | Says lower specs should boost server unit shipments and reduce VR200 NVL72 BOM costs. | · | tweet ↗ |
| 2026-07-01 | AAPL | @jukan05 | +0.45 | Nikkei says Apple raised foldable iPhone target and kept annual shipment forecast. | +4.8% | tweet ↗ |
| 2026-07-01 | QCOM | @jukan05 | +0.15 | Says Qualcomm revenue exposure to Amazon seems smaller than expected. | -3.1% | tweet ↗ |
Grade is our human read-worthiness rating; trader score is a rolling 20-bet hit-rate/alpha composite — different things, often disagreeing. “Since then” is direction-unaware in the table; the summary line above adjusts for which way they leaned.