{
    "id": "SEC-015",
    "category": "SEC",
    "title": "大盤漲跌貢獻排行",
    "question": "指數或自建市場組合的日變動由哪幾隻股票貢獻最多？",
    "chart": "bar",
    "metric": "日回報貢獻（百分點）",
    "secondary": "當期權重（%）",
    "x": "成分股",
    "y": "日回報貢獻（百分點）",
    "panels": [
        "成分貢獻排行",
        "權重與回報",
        "官方或代理口徑"
    ],
    "filters": [
        "成分股範圍",
        "產業分類",
        "加權方式"
    ],
    "apis": [
        "EOD",
        "FUND",
        "INDEX",
        "MARKETCAP"
    ],
    "calculation": "使用覈實當期成分與前日權重，計算wi×ri，其他部分及對賬殘差另列。",
    "caveat": "只有現在市值時只能標自建市值加權代理；不能冒充官方指數點數貢獻。；市場廣度必須覆蓋選定完整成分股並列出有效分母，不能直接把 Screener 前 1,000 筆當全市場。",
    "data_class": "額外方案",
    "complexity": "高",
    "audience": "進階",
    "reach": 8,
    "frequency": 8,
    "decision": 10,
    "clarity": 10,
    "sample_labels": [
        "最大正貢獻",
        "次大正貢獻",
        "最大負貢獻",
        "其餘成分"
    ],
    "cadence": "每交易日收市後",
    "sample_note": "僅用於合成視覺示意，並非真實行情或投資成果。",
    "category_name": "產業與市場廣度",
    "score": 87.0,
    "requires_user_input": false,
    "requires_extra_plan": true,
    "source_urls": [
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes",
        "https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds",
        "https://eodhd.com/marketplace/unicornbay/spglobal",
        "https://eodhd.com/financial-apis/historical-market-capitalization-api"
    ],
    "rank": 171,
    "stage": "P1",
    "svg_file": "mockups/0171-SEC-015.svg",
    "demo_fingerprint": "8a0acf433ce1718f",
    "collection": "catalogue",
    "sample_annotation": {
        "sample": true,
        "as_of": "2026-10-16",
        "notice": "Charts and tables for this report are generated, deterministic synthetic sample observations for educational layout and unit demonstration only. No provider, market data or analysis engine is called, and nothing here is a statement about real securities.",
        "notice_zh": "此報告的圖表與數據為確定性生成的合成示例數據，僅供教育及版面展示；並無連接任何資料供應商或實際分析引擎，不代表任何真實證券的表現。",
        "default_filters": {
            "symbol": "0700.HK",
            "period": "1Y",
            "benchmark": "HSI"
        },
        "filters": {
            "symbol": [
                "0700.HK",
                "0005.HK",
                "AAPL.US",
                "MSFT.US",
                "SPY.US",
                "BTC-USD.CC"
            ],
            "period": [
                "1Y",
                "3Y",
                "5Y"
            ],
            "benchmark": [
                "HSI",
                "SPX",
                "BTC"
            ]
        },
        "library": {
            "version": "2026-10-19",
            "source": "https://chatgpt.com/share/6ad67223-c610-83e8-adb2-33aaf792e584",
            "sample": true
        }
    }
}