Unverified50% confidenceFactExact time
A股市场使用 T+1 交易制度且有涨跌停限制，港股采用 T+0 且无涨跌幅限制，美股有盘前盘后交易时段
1
Sources
50%
Confidence
Long-term
Relevance
8/12/2026
First Seen
Sources
开源LLM股票分析系统：零成本自动运行的智能投资助手
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