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china-variance-commentary

Write variance commentary for A-share fund performance and portfolio changes. Adapts the original variance-commentary skill for fund accounting and Chinese fund reporting conventions. Triggers on "基金业绩点评", "组合表现分析", "variance commentary fund", "基金表现分析", "业绩归因", or "commentary on [fund] performance".

한국어 요약은 준비 중입니다. 원문 설명을 표시하고 있습니다.

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china-variance-commentary

Purpose

Write professional 基金业绩点评 — structured variance commentary on fund performance and portfolio changes.

Data Sources

Tier 0 — 万得 Wind(最全面付费数据)

  • 覆盖:A股/港美股/基金/指数/债券/宏观/研报/分析(44个工具)
  • MCP 服务:wind-mcp(需 WIND_API_KEY 密钥,以 ak_ 开头)
  • 优势:全市场覆盖面最广、数据最全面、包含研报和量化分析
  • 密钥申请:https://aifinmarket.wind.com.cn/#/home

Tier 1 — 同花顺 iFind(付费精确数据)/ AkShare MCP(Tier-2 免费备选)

get_fund_data(fund_code)              → Fund NAV, performance
get_quote(ticker)                     → Individual security performance
get_index_data("000001")              → Benchmark data

Secondary Sources

  • 基金公司 — fund performance data
  • 托管行 — custody data
  • Wind / Choice — performance analytics

Workflow

Step 1: Gather Performance Data

Performance snapshot:

MetricPeriodBenchmarkActive Return
净值增长率X.XX%X.XX%X.XX%
年化收益率X.XX%X.XX%X.XX%
波动率X.XX%X.XX%
夏普比率X.XX
最大回撤X.XX%
卡尔马比率X.XX

Step 2: Attribution Analysis

Performance attribution:

FactorContributionDescription
资产配置 (Allocation)X.XX%Sector/security weight decisions
个股选择 (Selection)X.XX%Security picking within sectors
交互效应 (Interaction)X.XX%Combined effect

Step 3: Sector Attribution

Sector performance:

SectorWeightReturnContributionBenchmark WeightBenchmark ReturnAllocation EffectSelection Effect
Total100%

Step 4: Top/Bottom Contributors

Best/worst performers:

#SecurityTickerWeightPeriod ReturnContribution
1 (Best)
2
3
...
(Worst)
(2nd Worst)
(3rd Worst)

Step 5: Risk Analysis

Risk metrics:

MetricValueBenchmarkAssessment
波动率X.XX%X.XX%Higher/Lower
最大回撤X.XX%X.XX%
下行偏差X.XX%X.XX%
VaR (95%)X.XX%
BetaX.XX
AlphaX.XX%

Step 6: Holdings Changes

Changes since last period:

ActionSecurityTickerReasonImpact
New buy
Add to
Reduce
Sold

Step 7: Market Context

Market environment:

FactorCurrentPrior PeriodChange
上证指数
沪深300
创业板指
北向资金
成交量

Step 8: Commentary

Standard format:

【业绩点评】[Fund Name] [Period]
报告期:[Date]
单位净值:¥X.XXXX
净值增长率:+/-X.XX%
基准收益率:+/-X.XX%
超额收益:+/-X.XX%

一、业绩概览
   [Overall performance summary]

二、归因分析
   [Attribution breakdown]

三、行业分析
   [Sector attribution]

四、重仓股表现
   [Top/bottom contributors]

五、风险指标
   [Risk metrics]

六、持仓变动
   [Changes in portfolio]

七、市场回顾
   [Market context]

八、展望
   [Forward outlook]

China-Specific Considerations

Fund Benchmarks

Fund TypeTypical Benchmark
股票型基金沪深300 / 创业板指
债券型基金中债综合指数
混合型基金沪深300 × 50% + 中债 × 50%
指数基金Tracking index
QDIIRelevant foreign index

Performance Presentation

ConventionChina Practice
Return calculationGeometric
BenchmarkContractual
Reporting frequencyDaily for public funds
Risk metricsStandard set

Quality Checks

Before delivering:

  • Performance data accurate
  • Attribution complete
  • Top/bottom contributors identified
  • Risk metrics calculated
  • Holdings changes documented
  • Market context current
  • Commentary balanced

Data Source Mode Switch: Set env var IFIND_DATA_SOURCE_MODE to control data source preference.

  • ifind-only (strict): Use iFind only, error if unavailable
  • ifind-fallback (default): iFind preferred, fallback to AkShare
  • akshare-only: Skip iFind, use AkShare only
  • wind-only: Wind only, error if unavailable
  • wind-fallback: Wind first, fallback to iFind → AkShare

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