On August 17, the average acetic acid price index rose across the board, with a clear upward trend; the current price is at a low to mid-level in the 1-year cycle, with limited downside potential and some room for upward movement. Recently, acetic acid prices in North China and South China have increased, facility utilization rates have improved, and downstream demand has followed, leading to a decent trading atmosphere. The market continues to operate on a strong note. The latest available data is up to August 17, 2026, and it is recommended to refer to real-time data.
I. Table of Mean Difference Changes
| Average Difference Type | Today’s Value (2026-08-17) | Yesterday’s Value (2026-08-16) | Direction of Change |
|---|---|---|---|
| 5-day Average Difference (D5) | 7.66 | 5.33 | + |
| 10-day Average Difference (D10) | -8.66 | -18.00 | + |
| 20-day Average Difference (D20) | -57.50 | -61.50 | + |
II. Signal State Determination
Three moving averages (5-day, 10-day, and 20-day) all changed in the same positive direction compared to the previous day, indicating a clear upward trend signal.
Three, Conclusions on Trend Directions
The price trend is clearly upward, for the following reasons:
1. On the mean difference indicator level: The 5-day, 10-day, and 20-day mean differences all showed an upward trend compared to the previous day, with completely consistent directional movements, thus meeting the clear upward judgment criteria specified in the mean difference method. 2. Spot market level: On August 17, the delivered price of acetic acid in the North China region increased by 15 CNY/ton to 2925 CNY/ton, and the factory price in the South China region increased by 25 CNY/ton to 2975 CNY/ton; facility utilization rates have improved, downstream demand has followed, the market trading atmosphere is acceptable, and industry sentiment is positive, supporting a stronger trend in the spot market.
Four, Spatial Reference
Acetic acid is currently at a medium-low price level in its 1-year cycle, with limited room for decline and some potential for an increase.
5. Trend Chart Display
Risk Warning
The above analysis is for reference only and does not constitute trading advice.
