Teng Yan (@tengyanAI) is an AI-infrastructure and supply-chain researcher associated with Tessara, where he publishes work on bottlenecks across compute, power, memory, networking and related systems. He describes himself as a former doctor and as building Tessara; Buzzberg has not independently verified the medical credential through a professional registry. His tracked commentary frequently covers NVIDIA, Micron, TSMC, Alphabet and the broader AI hardware stack.
| Horizon | 7D | 30D | 90D | 180D | 360D | AVG |
|---|---|---|---|---|---|---|
| Rank | #973 | #938 | #590 | #302 | — | #489 |
| Calls | 33 | 30 | 24 | 13 | 0/10 | 31 |
| Avg return | -3.0% | -11.4% | -0.7% | +7.4% | — | -3.0% |
| vs S&P 500 | -2.5 pp | -11.7 pp | -4.6 pp | -2.5 pp | — | -6.9 pp |
tengyanai has 31 trade ideas tracked on Buzzberg across 31 tickers since January 2026. Win rate 41% across 29 evaluated calls, average return +9.8%. Ranked #938 on Buzzberg's 30-day Authors leaderboard. Most covered: MU, BTC, NVDA.
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