📉 索提诺比率Sortino Ratio Calculator

使用说明与常见问题How-to & FAQ

「索提诺比率」是什么？What is the Sortino Ratio Calculator tool?

索提诺比率 = (组合收益率 - 无风险利率) ÷ 下行标准差，只惩罚低于目标的波动。可直接填下行偏差，或填一组各期收益率自动计算。本地处理。Sortino ratio = (portfolio return - risk-free rate) ÷ downside deviation, penalising only returns below the target. Enter the downside deviation or a list of period returns. Processed locally.

如何使用「索提诺比率」？How do I use the Sortino Ratio Calculator tool?

填写组合收益率、无风险利率（或目标收益率）和下行标准差，即可得到索提诺比率；也可以不填下行标准差，改为填写各期收益率列表。结果会随输入实时更新。Enter the portfolio return, the risk-free or target rate and the downside deviation to get the Sortino ratio; alternatively, leave the deviation out and enter a list of period returns. The result updates as you type.

和夏普比率？vs Sharpe?

夏普用总标准差，把上涨波动也算作风险；索提诺只看下跌。Sharpe uses total volatility, counting upside too; Sortino looks only at the downside.

能举个计算实例吗？Can you show a worked example?

例如在「索提诺比率」中填 组合收益率 % = 12，无风险利率 / 目标 % = 2，下行标准差 % = 8，结果区显示：索提诺比率：1.25；使用的收益率：12%；下行标准差：8%For example, entering Portfolio return % = 12, Risk-free rate / target % = 2, Downside deviation % = 8 in the Sortino Ratio Calculator gives: Sortino ratio: 1.25; Return used: 12%; Downside deviation: 8%

哪些输入会被检查？Which inputs are validated?

「索提诺比率」会检查这些输入——「组合收益率 %」：必须填写；「无风险利率 / 目标 %」：不能为负数；「下行标准差 %」：必须填写；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Sortino Ratio Calculator checks its inputs — "Portfolio return %": required; "Risk-free rate / target %": cannot be negative; "Downside deviation %": required; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「索提诺比率」的设置：「组合收益率 %」默认 12；「无风险利率 / 目标 %」默认 2；「下行标准差 %」默认 8；「或：各期收益率 %（可选）」可留空。每次生成结果都按当前设置处理。Settings in the Sortino Ratio Calculator — "Portfolio return %" default 12; "Risk-free rate / target %" default 2; "Downside deviation %" default 8; "Or: period returns % (optional)" optional. The result always uses the current settings.

计算结果可以作为最终依据吗？Can I rely on the result?

「索提诺比率」按标准公式计算，结果仅供参考；实际金额以银行、券商或税务机关的规则和四舍五入方式为准。The Sortino Ratio Calculator uses standard formulas and is for estimation only; actual figures depend on your bank, broker or tax authority's rules and rounding.

「索提诺比率」免费吗？需要注册吗？Is the Sortino Ratio Calculator free? Do I need an account?

「索提诺比率」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Sortino Ratio Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.