📈 股票贝塔系数 βStock Beta Calculator

使用说明与常见问题How-to & FAQ

「股票贝塔系数 β」是什么？What is the Stock Beta Calculator tool?

β = Cov(股票收益, 市场收益) ÷ Var(市场收益)：输入同期的股票和市场收益率序列（%），同时给出相关系数和 R²。本地处理。β = Cov(stock, market) ÷ Var(market): enter matching series of stock and market returns (%); correlation and R² are shown too. Processed locally.

如何使用「股票贝塔系数 β」？How do I use the Stock Beta Calculator tool?

在「股票贝塔系数 β」中，填写「股票收益率 %」、「市场收益率 %」等参数，结果会随输入实时计算并显示在下方。In the Stock Beta Calculator: Fill in "Stock returns %", "Market returns %"; results are recalculated instantly as you type.

用多长数据？How much data?

常用 3-5 年的月度收益率；数据越短越不稳定。3-5 years of monthly returns is common; short samples are unstable.

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

例如在「股票贝塔系数 β」中填 股票收益率 % = 2 -1 3 4 -2，市场收益率 % = 1 -1 2 3 -1，结果区显示：贝塔 β：1.4219；相关系数：0.9827；R²：0.9656；解读：波动大于市场For example, entering Stock returns % = 2 -1 3 4 -2, Market returns % = 1 -1 2 3 -1 in the Stock Beta Calculator gives: Beta β: 1.4219; Correlation: 0.9827; R²: 0.9656; Reading: more volatile than the market

有哪些选项可以调整？What options can I adjust?

「股票贝塔系数 β」的设置：「股票收益率 %」默认 2 -1 3 4 -2；「市场收益率 %」默认 1 -1 2 3 -1。每次生成结果都按当前设置处理。Settings in the Stock Beta Calculator — "Stock returns %" default 2 -1 3 4 -2; "Market returns %" default 1 -1 2 3 -1. 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?

「股票贝塔系数 β」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 Stock Beta Calculator uses standard formulas and is for estimation only; actual figures depend on your bank, broker or tax authority's rules and rounding.

「股票贝塔系数 β」免费吗？需要注册吗？Is the Stock Beta Calculator free? Do I need an account?

「股票贝塔系数 β」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 Stock Beta 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.