thematictrader
Pseudonymous markets account that posts as @ThematicTrader and publishes the Substack 9 Ventures; no real name or employer is disclosed. The publication's About page discloses only that the author is a "Carnegie Mellon Alum" and states that the coverage is small- and mid-cap equities across "AI Infrastructure & Power, Physical AI & Humanoids, Agentic AI Enablers, and Semiconductors & AI Connectivity." The author writes long-form due diligence on names held personally — on 20 May 2026, responding to readers about FuelCell Energy: "I'm not a paid promoter of FuelCell Energy. If you review my page, you will see I do some of the most extensive due diligence on this platform of all of my holdings and many names on my focus list."
Leaderboard rank
Open in leaderboard →| Horizon | 7D | 30D | 90D | 180D | 360D | AVG |
|---|---|---|---|---|---|---|
| Rank | #503 | #817 | #715 | #545 | — | #551 |
| Calls | 179 | 171 | 153 | 105 | 0/10 | 171 |
| Avg return | +0.5% | +0.1% | +0.5% | +1.9% | — | +0.7% |
| vs S&P 500 | +0.2 pp | -1.4 pp | -4.1 pp | -7.3 pp | — | -3.8 pp |
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thematictrader has 145 trade ideas tracked on Buzzberg across 139 tickers since January 2026. Win rate 36% across 145 evaluated calls, average return -5.4%. Ranked #817 on Buzzberg's 30-day Authors leaderboard. Most covered: VPG, FCEL, PENG.
Historical call returns are modeled from recorded ideas and stored prices, not actual brokerage portfolio returns. Check the evaluated call set and horizon; past results do not establish future prediction accuracy. Explore our data and methodology
