Damnang
Substack author, Damnang’s Substack
Damnang writes the semiconductor-focused Damnang’s Substack and posts as @damnang2 on X, under a pen name rather than a disclosed legal identity. The publication’s About page describes the author as holding a PhD earned in South Korea and working as a semiconductor engineer at a Fortune 500 company in Silicon Valley, with experience across both foundry and fabless roles and both pre-silicon and post-silicon work covering design, test, packaging and yield. On 15 July 2026 he wrote that “my PhD specialization is in DFT, Design for Testability,” and on 22 May 2026, addressing critics of a Qualcomm call, that “I used to work there.” Describing how the publication began, he wrote on 23 May 2026: “I’ve been writing technology articles on X since the start of this year. On March 15, I started writing on Substack in earnest.” His coverage is the semiconductor and AI-infrastructure supply chain — memory, optical interconnect, advanced packaging and test equipment.
Leaderboard rank
Open in leaderboard →| Horizon | 7D | 30D | 90D | 180D | 360D | AVG |
|---|---|---|---|---|---|---|
| Rank | #185 | #305 | #575 | — | — | — |
| Calls | 27 | 26 | 19 | 6/10 | 0/10 | 6/10 |
| Avg return | +2.7% | +3.3% | -0.2% | — | — | — |
| vs S&P 500 | +2.0 pp | +2.2 pp | -4.3 pp | — | — | — |
Ticker
Side
Calls
Mentions
First Call
Best call P&L
Status
Chart
Source
Loading
Showing 0 of 28 calls · sorted by mentions
Loading
Damnang has 28 trade ideas tracked on Buzzberg across 28 tickers since January 2026. Win rate 50% across 28 evaluated calls, average return +6.4%. Ranked #305 on Buzzberg's 30-day Authors leaderboard. Most covered: AEHR, COHR, MU.
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
