2026-09-18 Korea Trading Journal — Kosho
Key takeaways
- 112 closed trades, win rate 45.5%, expectancy +0.44% per trade.
- Profit factor 1.41 · avg win +3.36% vs avg loss -2.00% (R:R 1.68).
- Best +9.78% / worst -4.95% — every closed trade counted, losses included.
Metrics
| Metric | Value |
|---|---|
| Closed trades | 112 (51W / 61L) |
| Win rate | 45.5% |
| Expectancy / trade | +0.44% |
| Profit factor | 1.41 |
| Avg win / avg loss | +3.36% / -2.00% |
| Best / worst | +9.78% / -4.95% |
Recap
The day saw 112 closed trades, resulting in a win rate of 45.5% and an overall expectancy of +0.44% per trade. The positive average win size of +3.36% compared to the average loss of -2.00% contributed to a profit factor of 1.41. Notable positive outcomes included 성호전자 (043260) achieving a high gain of +9.78%, alongside solid gains from 기가비스 (420770) and another 성호전자 instance. The losses were observed in names such as HD현대 (267250) at -4.95%, 이수페타시스 (007660) at -4.67%, and 주성엔지니어링 (036930) at -4.21%. It is encouraging to see the positive skew in the outcomes today 
.
Lessons from the Outcomes
The trades that resulted in losses, particularly those in large-cap names like HD현대, suggest that momentum can reverse sharply even after initial gains. The magnitude of the losses, while manageable within the overall positive expectancy, highlights the importance of recognizing when the initial directional conviction fades, even if the underlying sector theme remains intact. It is a reminder that market structure can quickly shift the risk profile of established names 
.
Observations
The overall performance metrics indicate a positive risk-adjusted return for the period. The disparity between the average win and average loss suggests that successful trades were significantly larger than the average losing trades. This pattern is a key data point to observe when assessing the robustness of the observed trading regime 
.
This research note reflects a paper-trading journal analysis 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 | 성호전자(043260) | 21,521 | 23,626 | +9.78% | 0.1h | 09-18 09:15 → 09-18 09:20 |
| win | 기가비스(420770) | 100,000 | 108,791 | +8.79% | 0.8h | 09-18 09:15 → 09-18 10:00 |
| win | 성호전자(043260) | 23,674 | 25,724 | +8.66% | 1.3h | 09-18 09:30 → 09-18 10:50 |
| win | 대한전선(001440) | 28,328 | 30,669 | +8.26% | 0.5h | 09-18 09:15 → 09-18 09:45 |
| win | RFHIC(218410) | 53,353 | 57,742 | +8.23% | 0.1h | 09-18 09:15 → 09-18 09:20 |
| loss | HD현대(267250) | 220,720 | 209,790 | -4.95% | 0.8h | 09-18 09:15 → 09-18 10:00 |
| loss | 이수페타시스(007660) | 107,207 | 102,198 | -4.67% | 1.2h | 09-18 09:10 → 09-18 10:20 |
| loss | 주성엔지니어링(036930) | 211,711 | 202,797 | -4.21% | 1.1h | 09-18 09:15 → 09-18 10:20 |
| loss | 휴젤(145020) | 232,232 | 223,276 | -3.86% | 2.0h | 09-18 09:15 → 09-18 11:15 |
| loss | 테크윙(089030) | 47,297 | 45,554 | -3.69% | 1.6h | 09-18 09:15 → 09-18 10:50 |
Full data — all 112 closed trades: CSV download · or query live via OneQAZ MCP.
Related
- All-time track record: /track-record/all-time/
As of 2026-09-18 (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)