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a-share-concentration-index

Business
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A股市场集中度/筹码集中度分析。当用户说"集中度"、"concentration"、"筹码集中"、"HHI"、"CR10"、"龙头占比"时触发。量化分析市场或行业集中度。支持formal和brief风格。

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How to use this skill

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  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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Source SKILL.md: https://github.com/aifinlab/FinClaw/blob/HEAD/skills/a-share-concentration-index/SKILL.md

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A股市场集中度/筹码集中度分析

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: 获取行业/市场数据

Step 2: 计算集中度指标

  • CR_n: 前N名市值/营收占比
  • HHI: 赫芬达尔指数 = Σ(s_i²)
  • 基尼系数: 收益率/市值分布的不均匀度

Step 3: 集中度变化趋势

历史集中度时序变化

Step 4: 输出

维度formalbrief
集中度指标CR5/10/20+HHICR5
趋势历史变化序列升/降
默认风格：brief。

关键规则

  1. 集中度上升→龙头溢价→适合集中持仓
  2. 集中度下降→百花齐放→适合分散持仓
  3. A股近年行业集中度趋势上升（供给侧改革后）
  4. 筹码集中度可用股东人数变化衡量
  5. HHI > 2500为高度集中

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