September 28 report:
1. Mean Difference Change Table
| Mean Difference Indicator | Value on 2026-09-27 | Value on 2026-09-26 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 39.60 | 44.78 | - |
| 10-Day Mean Difference (D10) | 4.22 | -22.43 | + |
| 20-Day Mean Difference (D20) | 64.96 | 121.59 | - |
2. Signal Status Determination
The current three difference change direction combinations are (-, +, -), which is a rebound (slightly bearish) signal.
3. Trend Direction Conclusion
The current PTA price trend is fluctuating. Reason: The changes in the three averages compared to the previous day are not entirely consistent, not meeting the criteria for a clear upward or downward trend, and thus belong to a bearish rebound within a fluctuation range.
4. Position and Spatial Reference
PTA 60-day, 3-month, and 1-year cycle prices are all at high levels, corresponding to the 5th tier out of 5 tiers, with 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.