September 22 report:
1. Mean Deviation Change Table
| Type of Average Difference | Today’s Value (2026.09.21) | Yesterday’s Value (2026.09.20) | Direction of Change |
|---|---|---|---|
| 5-Day Average Difference | -160.00 | 20.00 | - |
| 10-Day Average Difference | 30.00 | 40.00 | - |
| 20-Day Average Difference | 75.00 | 95.00 | - |
2. Signal Status Judgment
Clearly identify a downtrend signal
3. Trend Direction Conclusion
The current price trend of formic acid in China is clearly declining. Reason: The changes in the 5-day, 10-day, and 20-day average differences compared to the previous day are all consistent, showing a downward trend, which meets the clear decline judgment rule of the average difference method.
4. Position Space Reference
60-day cycle price is in the 4th tier (moderately high), and the 3-month cycle price is also in the 4th tier (moderately high). The short-term upside is limited, and there is some room for a decline. * The 1-year price is in the second tier (mid-to-low range), suggesting limited room for a prolonged decline.
5. Trend Chart Display
Risk Warning
The above analysis is for reference only and does not constitute trading advice.