This analysis is based on the latest official spot data, using the mean difference method to determine that on October 11, 2026, DOP was in a strong consolidation (bullish) state. Recently, major manufacturers in China have continuously raised their quotes for several days. Currently, the 60-day, 3-month, and 1-year price cycles are all at high levels, with limited upside potential. It is recommended to monitor the fluctuations of upstream raw materials and changes in the demand for downstream PVC plasticizers in China.
I. Table for Calculating Changes in Finite Differences
| Mean Difference Indicator | Calculated Value as of 2026.10.11 | Calculated Value as of 2026.10.10 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 118.33 | 183.33 | - |
| 10-Day Mean Difference (D10) | 103.34 | 70.84 | + |
| 20-Day Mean Difference (D20) | 89.79 | 70.2 | + |
II. Signal State Determination
The current average difference change combination is (－, ＋, ＋), which matches the characteristics of a strong consolidation (biased towards bullish) signal.
III. Conclusion on Trend Direction
The current price trend is a bullish consolidation. Reason: The changes in the three averages compared to the previous day are not entirely consistent, which does not meet the criteria for a clear uptrend or downtrend. Overall, it is in a consolidation range, with signals indicating a strong consolidation attribute, and the direction is biased towards an uptrend.
4. Spatial Reference
Currently, the DOP prices for the 60-day, 3-month, and 1-year cycles are all in the fifth tier (high range), leaving limited room for further increases.
V. 1-Year Trend Chart
Six, Recent Quotation Dynamics of Major Manufacturers in China
October 8, 2026: Dongying Yimeide’s DOP price is quoted at RMB 10,200 per ton, up RMB 100 per ton; Zhenjiang Liancheng’s price is quoted at RMB 10,550 per ton, up RMB 150 per ton; Kaifeng Jiuhong’s price is quoted at RMB 10,600 per ton, up RMB 100 per ton.
October 9, 2026: Zhejiang Hongbo quoted RMB 10,700 per ton, up RMB 100 per ton; Shandong Shengfeng quoted RMB 10,455 per ton, up RMB 100 per ton; Dongying Yimeide quoted RMB 10,350 per ton, up RMB 150 per ton; Zhenjiang Liancheng quoted RMB 10,650 per ton, up RMB 100 per ton; Kaifeng Jiuhong quoted RMB 10,700 per ton, up RMB 100 per ton.
October 10, 2026: Shandong Shengfeng quoted RMB 10,655 per ton, up RMB 200 per ton; Dongying Yimeide quoted RMB 10,600 per ton, up RMB 250 per ton; Zhenjiang Liancheng quoted RMB 10,900 per ton, up RMB 250 per ton; Kaifeng Jiuhong quoted RMB 10,950 per ton, up RMB 250 per ton.
VII. Industry Chain Insights
Upstream related products: n-octanol, phthalic anhydride, and iso-octanol; downstream core demand sectors: PVC plasticizers.
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
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