Regime summary. The synthetic US500 state is constructive but mature: trend remains positive, volatility is contained and breadth is no longer accelerating.

状态摘要。 模拟 US500 市场仍偏积极但已进入成熟阶段：趋势维持正向、波动率受控，而市场宽度不再加速。

Dashboard | 仪表板

Factor 因素	State 状态	Interpretation 解读
Trend 趋势	Constructive 积极	Medium-term slope remains positive 中期斜率仍为正
Volatility 波动率	Contained 受控	No synthetic stress break 尚无模拟压力突破
Breadth 宽度	Plateauing 走平	Participation is not accelerating 参与度未继续增强

The combined evidence supports monitoring rather than certainty. 综合证据适合持续观察，而不是给出确定性结论。