通过行情数据服务查询股票的贝塔系数和历史波动率。贝塔系数衡量股票相对于基准指数（如沪深300）的敏感度；波动率衡量指定期间收益率的离散程度。支持自定义日期范围、频率（日/周/月）、收益率类型（简单收益率/对数收益率）和基准指数。覆盖上交所、深交所和北交所A股。
- 服务商
- cn financial pro 数据 (cn financial pro Data)
- 输入摘要
- {"name":"codes","type":"string","required":true,"description":"Stock codes (iFinD format), comma-separated (max 50). Examples: '600519.SH', '000001.SZ,300189.SZ'"}, {"name":"sdate","type":"string","required":false,"description":"Start date of calculation window. Formats: 'YYYYMMDD' or 'YYYY-MM-DD'. Defaults to 1 year ago."}, {"name":"edate","type":"string","required":false,"description":"End date of calculation window. Formats: 'YYYYMMDD' or 'YYYY-MM-DD'. Defaults to today."}, {"name":"freq","type":"string","required":false,"description":"Return frequency: 'daily' (日), 'weekly' (周), 'monthly' (月). Defaults to 'weekly'."}, {"name":"return_type","type":"string","required":false,"description":"Return calculation method: 'simple' (普通收益率), 'log' (对数收益率). Defaults to 'simple'."}, {"name":"benchmark","type":"string","required":false,"description":"Benchmark index code for Beta calculation. Defaults to '000300.SH' (沪深300). Examples: '000001.SH' (上证指数), '399006.SZ' (创业板指)"}
- 输出摘要
- 暂无公开信息
- 计费规则
- 1 credits/result
- 数据更新时间
- 暂无公开信息
- 验证状态
- 暂无公开信息
