zephyr_z9
Semiconductor Analyst, Citrini Research
zephyr_z9 is the X account of Zephyr, a pseudonymous semiconductor analyst at Citrini Research whose profile sums up its subject as AI and chips. The account announced in January 2026 that it had joined Citrini Research; later that month Citrini introduced Zephyr as one of its two newest team members, semiconductor analysts hired to add chip-industry depth to its thematic research, and Zephyr writes for its Semis Memos series on the AI infrastructure build-out. SemiAnalysis acquired Citrini Research in September 2026, and Citrini continues under its own brand with the same team. On X, Zephyr comments on AI accelerators, including Nvidia's and AMD's, and on memory, from HBM demand and DRAM capacity to China's CXMT and emerging designs such as high-bandwidth flash.
Leaderboard rank
Open in leaderboard →| Horizon | 7D | 30D | 90D | 180D | 360D | AVG |
|---|---|---|---|---|---|---|
| Rank | #46 | #40 | #345 | #114 | — | #96 |
| Calls | 27 | 26 | 22 | 19 | 0/10 | 26 |
| Avg return | +5.4% | +13.9% | +10.7% | +26.6% | — | +15.9% |
| vs S&P 500 | +4.0 pp | +10.1 pp | +0.6 pp | +11.4 pp | — | +7.1 pp |
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Showing 0 of 27 calls · sorted by mentions
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zephyr_z9 has 27 trade ideas tracked on Buzzberg across 27 tickers since February 2026. Win rate 63% across 27 evaluated calls, average return +10.3%. Ranked #40 on Buzzberg's 30-day Authors leaderboard. Most covered: 000660.KS, 005930.KS, LITE.
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
