<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>波动率 on 111qqz's blog</title><link>https://111qqz.com/en/tags/%E6%B3%A2%E5%8A%A8%E7%8E%87/</link><description>Recent content in 波动率 on 111qqz's blog</description><generator>Hugo -- gohugo.io</generator><language>en</language><managingEditor>hust.111qqz@gmail.com (111qqz)</managingEditor><webMaster>hust.111qqz@gmail.com (111qqz)</webMaster><copyright>© 2011-2026 111qqz</copyright><lastBuildDate>Sun, 13 Sep 2026 17:30:00 +0800</lastBuildDate><atom:link href="https://111qqz.com/en/tags/%E6%B3%A2%E5%8A%A8%E7%8E%87/index.xml" rel="self" type="application/rss+xml"/><item><title>夏普比率到底衡量了什么？</title><link>https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-what-does-sharpe-ratio-measure/</link><pubDate>Sun, 13 Sep 2026 17:30:00 +0800</pubDate><author>hust.111qqz@gmail.com (111qqz)</author><guid>https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-what-does-sharpe-ratio-measure/</guid><description>&lt;p&gt;上一篇《&lt;a href="https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-risk-is-not-a-number/" &gt;风险也不是一个数字&lt;/a&gt;》的结尾留了一句：收益和风险都拆成了一组指标，但一项投资还是没法只看其中一边，下一篇写夏普比率，以及&amp;quot;风险调整后收益&amp;quot;到底调整了什么。这篇来还这笔账。&lt;/p&gt;</description></item><item><title>风险也不是一个数字：波动率、最大回撤和 VaR 到底在衡量什么？</title><link>https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-risk-is-not-a-number/</link><pubDate>Sun, 13 Sep 2026 16:00:00 +0800</pubDate><author>hust.111qqz@gmail.com (111qqz)</author><guid>https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-risk-is-not-a-number/</guid><description>&lt;p&gt;上一篇《&lt;a href="https://111qqz.com/en/post/%E9%87%91%E8%9E%8D/2026-09-13-return-is-not-a-number/" &gt;收益率不是一个数字&lt;/a&gt;》最后留下了一句话：同样赚了 10%，一路平稳和先腰斩再翻倍的体验完全不同。我本来以为接下来该看&amp;quot;怎么比较投资&amp;quot;了，结果发现前面还缺一块——先把风险这半边理清楚。&lt;/p&gt;</description></item></channel></rss>