October 19th, according to reports
1. Mean Deviation Change Table
| Mean Difference Indicator | Value as of 2026.10.18 | Value as of 2026.10.17 | Direction of Change |
|---|---|---|---|
| 5-Day Mean Difference (D5) | -78.4 | -81.6 | + |
| 10-Day Mean Difference (D10) | -166.2 | -228.6 | + |
| 20-Day Mean Difference (D20) | 214.3 | 312.1 | - |
2. Signal Status Judgment
Currently, this is a strong rebound (bullish, rebound-type) signal.
3. Trend Direction Conclusion
The trend is oscillatory. Reason: The change directions of the three mean differences from the previous day are (+, +, -), which are not completely consistent, meeting the criteria for an oscillatory trend.
4. Positional Spatial Reference
Styrene prices in China are at the 5th highest level in a 1-year cycle, with limited room for further increases; in the 60-day and 3-month cycles, they are at the 4th middle-to-high level.
5. Trend Chart Display
6. Risk Warning
The above analysis is for reference only and does not constitute trading advice.
