September 29 report:
1. Mean Difference Change Table
| Difference Type | Value as of 2026.9.28 | Value as of 2026.9.27 | Direction of Change |
|---|---|---|---|
| 5-Day Difference (D5) | 112 | 0 | + |
| 10-Day Difference (D10) | -5 | -55 | + |
| 20-Day Difference (D20) | -192.9 | -154.9 | - |
2. Signal Status Judgment
Currently, this is a strong rebound signal (bullish, of a rebound nature) within the oscillation range.
3. Trend Direction Conclusion
The short-term trend is choppy, with a bias toward a bullish rebound. Reason: The changes in the three differences from the previous day are not entirely consistent, which does not meet the criteria for a clear upward or downward trend. This indicates a range-bound market, with the corresponding change combination being (+, +, -), which is characteristic of a strong rebound (biased towards bullishness).
4. Positional Spatial Reference
For the 60-day cycle, styrene prices are in the fifth tier (high range), with limited short-term upside; for the one-year cycle, prices are in the fourth tier (mid-to-high range), and further gains should be monitored against resistance at previous highs.
5. Trend Chart Display
Risk Warning
The above analysis is for reference only and does not constitute trading advice.