September 21st, news:
1. Average Difference Variation Table
| Type of Mean Difference | Value on 2026-09-20 | Value on 2026-09-19 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | -71.38 | -68.88 | - |
| 10-Day Mean Difference (D10) | 71.14 | 87.39 | - |
| 20-Day Mean Difference (D20) | 219.99 | 242.50 | - |
2. Signal Status Determination
Currently, this constitutes a clear bearish signal.
3. Trend Direction Conclusion
The trend is clearly downward, reason: the changes in the 5-day, 10-day, and 20-day moving averages compared to the previous day are all consistent and declining, which meets the criteria for a clear downward trend.
4. Positional Space Reference
Polyester staple fiber prices, over a one-year cycle, are at the fifth tier (high levels), leaving limited room for further increases.
5. Trend Chart Display
6. Risk Warning
The above analysis is for reference only and does not constitute trading advice.