2026-08-28 Korea Trading Journal — Kosho
Key takeaways
- 154 closed trades, win rate 57.1%, expectancy +0.62% per trade.
- Profit factor 1.45 · avg win +3.46% vs avg loss -3.17% (R:R 1.09).
- Best +11.14% / worst -15.25% — every closed trade counted, losses included.
Metrics
| Metric | Value |
|---|---|
| Closed trades | 154 (88W / 66L) |
| Win rate | 57.1% |
| Expectancy / trade | +0.62% |
| Profit factor | 1.45 |
| Avg win / avg loss | +3.46% / -3.17% |
| Best / worst | +11.14% / -15.25% |
Recap
The day saw 154 closed trades, resulting in a win rate of 57.1% and a positive expectancy of +0.62% per trade. The average winning trade realized a gain of 3.46%, significantly outperforming the average loss of -3.17%. Notable positive outcomes included gains on DevSisterz (194480) at +11.14% and multiple instances of Wonik Holdings (030530) showing strong appreciation, reaching +11.13% and +9.24% respectively. Conversely, the losses were marked by significant drawdowns, such as the -15.25% on Wonik Holdings (030530) and -6.37% on Samsung Biologics (207940). Overall, the positive profit factor of 1.45 suggests that the winning trades were materially larger than the losing ones, which is encouraging 
.
Observations on Outcomes
The performance highlights a clear asymmetry in outcomes today. While several large gains were captured, the presence of deep losses, particularly on the same name like Wonik Holdings (030530), indicates periods of high volatility and potential overextension within specific names. The ability to book several substantial wins suggests that identifying high-momentum setups remains a viable pattern in the current market structure 
.
Lessons from Drawdowns
The notable losses, particularly the -15.25% on Wonik Holdings (030530), underscore the risk inherent in momentum plays when reversals occur rapidly. These instances suggest that while strong upward moves can be profitable, the downside capture can be swift and deep, even when the initial thesis for the trade was sound. It is clear that managing the magnitude of drawdowns, even when the trade is profitable overall, requires careful attention to volatility regimes 
.
This research note reflects the outcomes of simulated trading activity and does not constitute investment advice.
Notable trades (top 5 wins · top 5 losses)
| Result | Symbol | Buy | Sell | P&L | Held | Entry → Exit (KST) |
|---|---|---|---|---|---|---|
| win | 데브시스터즈(194480) | 16,206 | 18,012 | +11.14% | 23.8h | 08-27 09:45 → 08-28 09:35 |
| win | 원익홀딩스(030530) | 18,518 | 20,579 | +11.13% | 0.9h | 08-28 13:35 → 08-28 14:30 |
| win | 원익홀딩스(030530) | 20,621 | 22,527 | +9.24% | 0.2h | 08-28 14:40 → 08-28 14:50 |
| win | 우리기술(032820) | 12,252 | 13,357 | +9.02% | 17.8h | 08-27 15:15 → 08-28 09:05 |
| win | 코스메카코리아(241710) | 140,841 | 152,647 | +8.38% | 27.8h | 08-27 09:45 → 08-28 13:35 |
| loss | 원익홀딩스(030530) | 22,573 | 19,131 | -15.25% | 0.3h | 08-28 15:00 → 08-28 15:20 |
| loss | 삼성바이오로직스(207940) | 1,585,584 | 1,484,514 | -6.37% | 18.1h | 08-27 15:00 → 08-28 09:05 |
| loss | 엔켐(348370) | 22,573 | 21,179 | -6.18% | 19.8h | 08-27 13:50 → 08-28 09:35 |
| loss | 우리기술(032820) | 13,383 | 12,627 | -5.65% | 0.3h | 08-28 09:15 → 08-28 09:35 |
| loss | 로보티즈(108490) | 251,751 | 239,260 | -4.96% | 48.8h | 08-26 09:40 → 08-28 10:30 |
Full data — all 154 closed trades: CSV download · or query live via OneQAZ MCP.
Related
- All-time track record: /track-record/all-time/
As of 2026-08-28 (KST).
Disclaimer: OneQAZ figures are paper-trading research, not investment advice. Past simulated performance does not predict future real-money results.
Three ways to see OneQAZ — this post is the synthesis layer:
- Live — dashboard stream (the system’s screen, 24/7)
- Synthesis — blog.oneqaz.com (daily reads · journals · track record)
- Query — OneQAZ MCP (connect an AI to live data)