September 23rd, news
1. Mean Difference Change Table
| Mean Difference Indicator | Today’s Value (2026.09.22) | Yesterday’s Value (2026.09.21) | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | -123.33 | -106.67 | - |
| 10-Day Mean Difference (D10) | -93.34 | -45.00 | - |
| 20-Day Mean Difference (D20) | 162.50 | 195.00 | - |
2. Signal Status Determination
The current situation is a clear signal of decline.
3. Trend Direction Conclusion
The current trend in PC prices is a clear decline. Reason: The three moving averages—D5, D10, and D20—have all changed in the same direction as the previous day, all registering negative values, thereby satisfying the criterion for a clear downward trend under the moving-average method. Fundamental update: Currently, the PC unit in Zhangzhou Chimei is operating with a single line, and the PC unit in Sichuan Tianhua is operating at reduced capacity; overall, the supply side remains stable. Upstream, both bisphenol A and dimethyl carbonate are at high price levels, providing some support to PC costs, which may limit the extent of any future price decreases.
4. Positional Spatial Reference
60-day cycle: It is in the 4th tier (moderately high), with limited short-term upside and significant pressure for a pullback. * 3-month cycle: Currently at the 5th level (high range), with insufficient mid-term upward momentum. * 1 year cycle: in the 3rd tier (median), with some room for long-term fluctuations.
5. Trend Chart Display
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
2. Signal Status Judgment
The current situation is a clear signal of decline.
3. Trend Direction Conclusion
The current price trend for PCs is clearly downward. Reason: The three moving averages—D5, D10, and D20—have all changed in the same direction as the previous day, all declining, thereby satisfying the criterion for a clear downtrend under the moving-average method. Fundamental supplement: Currently, the Zhangzhou Chimei PC unit is operating on a single line, and the Sichuan Tianhua PC unit is operating at reduced capacity. Overall, the supply side is stable. Upstream bisphenol A and dimethyl carbonate are both at high prices, providing some support to PC costs, which may limit the extent of any price decrease.
4. Positional Spatial Reference
60-day cycle: It is in the 4th tier (moderately high), with limited short-term upside potential and significant pressure for a pullback. * 3-month cycle: Currently at the 5th level (high range), with insufficient mid-term upward momentum. * 1 year cycle: In the 3rd tier (median), there is still some room for fluctuation in the long term.
