This short-term price trend analysis of DOP based on the method of averages shows: the current DOP price is at a high point in the nearly 1-year cycle, with the average difference signal corresponding to a fluctuation pattern of a pullback (biased towards bearish), indicating limited upside potential. The cost support from upstream raw materials still exists in China, but there is a need to be cautious of the risk of a pullback from the high levels.
Note: The most recent DOP price data available as of October 22, 2026, is provided here; we recommend referring to real-time data for the most up-to-date information.
I. Table of Finite Differences
| Mean Difference Indicator | Value on October 22, 2026 | Value on October 21, 2026 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | 16.33 | 26.16 | - |
| 10-Day Mean Difference (D10) | 11.42 | 1.5 | + |
| 20-Day Mean Difference (D20) | 110.29 | 129.92 | - |
II. Signal State Determination
The current three deviation change direction combinations are (-, +, -), corresponding to a rebound signal (biased towards bearish).
III. Conclusion on Trend Direction
The current price trend is oscillating, reason: the change in direction of the 5-day, 10-day, and 20-day moving average differences from the previous day is not entirely consistent, and there is no clear trend signal where all three are either entirely positive or entirely negative, which meets the criteria for an oscillating market.
4. Location and Spatial Reference
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. Price Trend Over the Past Year
VI. Industry Chain Reference
The upstream raw materials for DOP are n-octanol, phthalic anhydride, and isooctanol. Currently, the prices of phthalic anhydride and isooctanol are both at near‑one‑year highs, providing cost‑side support for DOP. Downstream demand is primarily driven by PVC plasticizers, but there are no significant positive catalysts on the demand side at this time.
VII. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
(Source: )