This analysis is based on the latest spot average prices and upstream and downstream data of the industrial chain. It uses the mean difference analysis method to objectively assess the short-term price trend of DOP, covering core contents such as trend signals, price fluctuation ranges, and risk warnings, providing market references for industrial customers in China.
Data Explanation
The latest available DOP-related data is up to September 22, 2026. It is recommended to refer to real-time data.
1. Mean Deviation Change Table
| Mean Difference Indicator | Today’s Value (2026.9.22) | Yesterday’s Value (2026.9.21) | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | -163.33 | -65 | - |
| 10-Day Mean Difference (D10) | 19.17 | 74.17 | - |
| 20-Day Mean Difference (D20) | 246.66 | 275.42 | - |
2. Signal Status Judgment
Clearly identify a downtrend signal
3. Trend Direction Conclusion
The short-term price trend is clearly downward.
Reason: According to the rules of the average difference method, the 5-day, 10-day, and 20-day average differences have all changed in the same direction as the previous day, all being negative, which meets the criteria for a clear downward trend. Additionally, in the past week, the quotes from major Chinese DOP manufacturers have been continuously decreasing, and the actual market transaction prices have also weakened, further confirming the downward trend.
4. Positional Spatial Reference
Prices for the 60-day, 3-month, and 1-year cycles are all in the fifth tier (high range), leaving very limited room for further increases. During the current downward move, it is important to monitor changes at the cost-support levels of upstream iso‑octanol and phthalic anhydride.
5. Trend Chart Display
6. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
(Source: China)
