@longtundiary longtundiary
Thai-language AI-compute supply-chain analyst mapping moats and second-order winners
Posts thesis-driven, reasoning-heavy threads (largely in Tha
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: 40% hit rate, -1.14% mean alpha, trader score -1.42. Their last-14d mentions, direction-adjusted, have moved -2.8% since posting (mean over 18 mentions with price data).
longtundiary is mostly publishing Thai macro-framework theses, not explicit trades: bullish reads cluster around AI workflow/software moats, storage supply discipline, and selective physical-AI infrastructure. The distinctive read is that AI agents shift value toward governed execution layers, cost-to-serve moats, and scarce capacity rather than only model or cloud owners. No CALL_DIRECTIONAL or POSITION_DISCLOSURE signals appear, so there is no confirmed late-week add, trim, exit, or position flip.
The author’s signals are narrative-heavy, with no explicit directional calls, position disclosures, or news breaks. Concentration sits in AI workflow/software moats and late-week storage scarcity frameworks, while the only clearly bearish ticker read is TSM as overextended. No confirmed adds, trims, exits, or flip are present in the input.
| date (PT) | ticker | author | sent | what they said | since then | receipt |
|---|---|---|---|---|---|---|
| 2026-07-02 | NVDA | @longtundiary | +0.00 | Uses Karp's PLTR-NVDA deal comments to frame true AI rental cost and data leakage risk. | — | tweet ↗ |
| 2026-07-02 | PLTR | @longtundiary | +0.25 | Uses Karp's PLTR-NVDA deal comments to frame true AI rental cost and data leakage risk. | — | tweet ↗ |
| 2026-07-01 | TSLA | @longtundiary | +0.05 | Humanoid robotics thesis: scarce repeat-sale components may capture value, but platforms may insource. | -7.5% | tweet ↗ |
| 2026-07-01 | META | @longtundiary | +0.35 | Thai text says META is back. | -4.9% | tweet ↗ |
| 2026-06-30 | AMZN | @longtundiary | +0.45 | Token optimization may pressure model margins but benefit hyperscaler tollbooths via Jevons effect. | +1.8% | tweet ↗ |
| 2026-06-30 | MSFT | @longtundiary | +0.45 | Token optimization may pressure model margins but benefit hyperscaler tollbooths via Jevons effect. | +4.7% | tweet ↗ |
| 2026-06-30 | GOOGL | @longtundiary | +0.45 | Token optimization may pressure model margins but benefit hyperscaler tollbooths via Jevons effect. | +0.7% | tweet ↗ |
| 2026-06-29 | TSM | @longtundiary | +0.55 | Argues TSMC moat is packaging, node, and base die integration; Intel opportunity depends on timing. | -4.6% | tweet ↗ |
| 2026-06-29 | INTC | @longtundiary | +0.15 | Argues TSMC moat is packaging, node, and base die integration; Intel opportunity depends on timing. | -8.6% | tweet ↗ |
| 2026-06-29 | · | @longtundiary | · | Thai-language bullish memory supply thesis around LTAs and CXMT fears fading. | · | tweet ↗ |
| 2026-06-28 | SHOP | @longtundiary | +0.55 | Long-form bullish SHOP thesis on SaaS, GMV, switching costs and agentic shopping. | +2.2% | tweet ↗ |
| 2026-06-27 | SPCX | @longtundiary | -0.15 | Explains space data center cooling and orbital construction difficulties despite launch cost excitement. | · | tweet ↗ |
| 2026-06-27 | AAPL | @longtundiary | +0.25 | Says Apple smartly accepted expensive memory early to hurt competitors. | +8.8% | tweet ↗ |
| 2026-06-27 | · | @longtundiary | · | Long-term memory thesis says CXMT cannot meet demand and memory is no longer commodity. | · | tweet ↗ |
| 2026-06-26 | ZETA | @longtundiary | +0.45 | Says Zeta launched a tool measuring brand visibility in AI answers, a new marketing field. | +9.1% | 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.