A股收益率分布/统计特征分析

SkillDev tools

A-share return distribution / statistical characteristics analysis. Triggered when the user says "收益率分布", "distribution", "正态检验", "偏度", "峰度", or "收益率统计". Performs quantitative analysis of return distribution characteristics. Supports formal and brief styles.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the A股收益率分布/统计特征分析 skill

What this skill tells your AI

The instructions your AI receives, as published by aifinlab/finclaw in skills/a-share-distribution-analysis/SKILL.md and read by ahel’s review.

数据源

SCRIPTS="$SKILLS_ROOT/cn-stock-data/scripts"
python "$SCRIPTS/cn_stock_data.py" kline --code [CODE] --freq daily --start [日期]
python "$SCRIPTS/cn_stock_data.py" quote --code [CODE]
python "$SCRIPTS/cn_stock_data.py" finance --code [CODE]

Workflow

Step 1: 获取K线收益率序列

Step 2: 描述性统计

均值/中位数/标准差/偏度/峰度/最大值/最小值

Step 3: 正态性检验

  • Jarque-Bera检验
  • Shapiro-Wilk检验
  • QQ图分析

Step 4: 分布拟合

拟合t分布/GED分布/混合正态,比较拟合优度

Step 5: 输出

维度formalbrief
统计量完整描述性统计偏度/峰度
正态检验多种检验结果是否正态
分布拟合最佳拟合分布分布类型
默认风格:brief。

关键规则

  1. A股收益率不服从正态分布——尖峰肥尾特征显著
  2. 负偏度意味着下跌极端值更多——投资者面临左尾风险
  3. 峰度>3说明极端收益出现频率高于正态预期
  4. 分布假设影响VaR/期权定价等所有风险计算
  5. 不同市值股票的分布特征差异大——小盘更尖峰

使用示例

示例 1: 基本使用

# 调用 skill
result = run_skill({
    "param1": "value1",
    "param2": "value2"
})

示例 2: 命令行使用

python scripts/run_skill.py --input data.json

Signals

GitHub stars
241
Forks
38
Last commit
May 2026
Advanced
Catalog kind
skill
Gateway key
a-share-distribution-analysis
Source
github.com/aifinlab/finclaw