September 21 report:
1. Average Difference Change Table
| Type of Average Difference | Today’s Value (2026.09.20) | Yesterday’s Value (2026.09.19) | Direction of Change |
|---|---|---|---|
| 5-Day Average Difference (D5) | -94.57 | -81.86 | - |
| 10-Day Average Difference (D10) | 107.79 | 121.98 | - |
| 20-Day Average Difference (D20) | 260.56 | 273.93 | - |
2. Signal Status Judgment
Clearly identify a downtrend signal
3. Trend Direction Conclusion
The current PTA price trend is clearly declining. Reason: The changes in the 5-day, 10-day, and 20-day moving averages compared to the previous day are all negative, which is consistent with the criteria for a clear decline according to the moving average difference method.
4. Positional Spatial Reference
PTA prices across the 60-day, 3-month, and 1-year timeframes are all in the fifth tier (high range), leaving limited room for further upside; downside correction momentum remains relatively strong going forward.
5. Trend Chart Display
6. Risk Warning
The above analysis is for reference only and does not constitute trading advice.