September 20th report:
1. Average Difference Change Table
| Type of Average Difference | Today’s Value (2026-09-19) | Yesterday’s Value (2026-09-18) | Direction of Change |
|---|---|---|---|
| 5-Day Average Difference (D5) | -68.88 | -55.21 | - |
| 10-Day Average Difference (D10) | 87.39 | 111.76 | - |
| 20-Day Average Difference (D20) | 242.50 | 249.32 | - |
2. Signal Status Determination
Clearly identify a downtrend signal
3. Trend Direction Conclusion
Downward trend. Reason: The directional changes of the 5-day, 10-day, and 20-day moving averages were all negative compared to the previous day, with all three exhibiting identical trends, thereby satisfying the clear downward‑trend criterion under the moving‑average method.
4. Position and Spatial Reference
Polyester staple fiber 60-day, 3-month, and 1-year cycle prices are all in the 5th tier (high), with limited room for further increases and relatively higher downside risks.
5. Trend Chart Display
6. Risk Warning
The above analysis is for reference only and does not constitute trading advice.