---
title: "跨资产再平衡阈值矩阵、最大回撤(MaxDD)与参数法VaR/流动性覆盖率(LCR)数学公式"
section: "07-tools-strategy"
date: "2026-10-25"
lastmod: "2026-10-25"
age_days: 0
stale_over_6m: false
tags: ["策略工具","再平衡阈值","VaR","最大回撤","风险管理"]
summary: "5/25再平衡带宽法则 | 95%/99%参数法VaR = μ×√T - Z×σ×√T | 应急流动性覆盖率 LCR = 高流动短债货币 / 12个月支出"
ext_url: "https://www.portfoliovisualizer.com/asset-correlations"
backup_url: "https://www.portfoliovisualizer.com/monte-carlo-simulation"
html_url: "https://52etf.net/07-tools-strategy/rebalance-var-risk-management-formulas/"
markdown_url: "https://52etf.net/07-tools-strategy/rebalance-var-risk-management-formulas/index.md"
repo_file: "content/07-tools-strategy/rebalance-var-risk-management-formulas.md"
content_signal: "search=yes, ai-input=yes, ai-train=no"
---

# 跨资产再平衡阈值矩阵、最大回撤(MaxDD)与参数法VaR/流动性覆盖率(LCR)数学公式

- **缓存更新日期 (Lastmod)**: `2026-10-25` (正常缓存期内: 0天)
- **所属分类 (Category)**: `07-tools-strategy` (07-tools-strategy · 策略数学模型与Agent工具链)
- **标签 (Tags)**: `#策略工具` `#再平衡阈值` `#VaR` `#最大回撤` `#风险管理` 
- **缓存摘要 (Summary)**: 5/25再平衡带宽法则 | 95%/99%参数法VaR = μ×√T - Z×σ×√T | 应急流动性覆盖率 LCR = 高流动短债货币 / 12个月支出
- **主数据源链接 (Primary URL)**: https://www.portfoliovisualizer.com/asset-correlations
- **备用校准链接 (Backup URL)**: https://www.portfoliovisualizer.com/monte-carlo-simulation
- **GitHub 校准源文件 (Repo Path)**: `content/07-tools-strategy/rebalance-var-risk-management-formulas.md`

---


### 风险管理与跨周期再平衡纯数学模型（不含任何个人持仓数据）

1. **再平衡偏离度触发公式 (5/25 Rule)**：
   - 绝对偏离：`Δw_i = |w_i(t) - w_i^*| >= 5%`
   - 相对偏离：`δw_i = |w_i(t) - w_i^*| / w_i^* >= 25%`
2. **参数法在险价值 (Parametric VaR) 与最大回撤 (MaxDD)**：
   - `VaR_(α, T) = |μ_d × T - Z_α × σ_d × √T|`（`Z_0.95 = 1.645`，`Z_0.99 = 2.326`）
   - `MaxDD = max((Peak_t - Trough_t) / Peak_t)`，恢复所需涨幅 `R = MaxDD / (1 - MaxDD)`
3. **流动性覆盖率 (LCR)**：
   - `LCR = T+1可无损变现高流动性资产 ÷ 未来12个月基准支出总额`