September 21 report:
1. Average Difference Change Table
| Mean Difference Indicator | Today’s Value (2026.09.20) | Yesterday’s Value (2026.09.19) | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference | 0.00 | 3.33 | - |
| 10-Day Mean Difference | 121.67 | 158.34 | - |
| 20-Day Mean Difference | 271.66 | 270.00 | + |
2. Signal Status Determination
Moderate pullback (bearish, pullback in nature)
3. Trend Direction Conclusion
Volatility. Reason: The three mean differences changed in the following directions compared to the previous day: (-, -, +). Since the directions of change are not entirely consistent, this meets the criteria for a volatile market trend.
4. Positional Spatial Reference
Acrylic acid 60-day and 3-month cycle prices are in the 5th tier (high), with limited short-term upside potential; 1-year cycle prices are in the 3rd tier (middle), with relatively balanced upside and downside potential in the medium to long term.
5. Trend Chart Display
6. Spot Price Reference
On September 20, 2026, the prices of butyl acrylate from Wanhua Chemical in all regions of China increased by 150 CNY/ton compared to the previous quotation day: South China was quoted at 10,550 CNY/ton, East China at 10,500 CNY/ton, North China at 10,450 CNY/ton, and Northeast China at 10,450 CNY/ton. On September 18, 2026, the delivered price of acrylic acid from Shanghai Huayi New Materials in South China was 9,000 CNY/ton, an increase of 100 CNY/ton from the previous quotation day, and the delivered price of glacial acrylic acid in South China was 9,200 CNY/ton, an increase of 50 CNY/ton from the previous quotation day.
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
