{
    "id": "ETF_COMMODITY-05",
    "category": "ETF_COMMODITY",
    "category_name": "商品 ETF／ETC",
    "title": "現貨、換倉與抵押品收益歸因",
    "question": "現貨、換倉與抵押品收益歸因",
    "chart": "waterfall",
    "metric": "現貨、換倉與抵押品收益歸因",
    "secondary": "瀑布圖",
    "x": "觀察期／樣本",
    "y": "示例數值",
    "panels": [
        "現貨、換倉與抵押品收益歸因",
        "瀑布圖",
        "資料明細"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "FUND_ETF",
        "COMMODITIES"
    ],
    "calculation": "以真正持倉損益分拆而非殘差命名。",
    "caveat": "只有 ETF 價格與現貨序列無法識別全部收益來源。",
    "inputs": "SUPPLEMENT.實際持倉與交易\nSUPPLEMENT.合約結算\nSUPPLEMENT.抵押品利息與費用",
    "extra_inputs": "依左側必要欄位與限制核實",
    "data_class": "需補來源",
    "complexity": "先補資料",
    "rank": 5,
    "stage": "P1",
    "collection": "product",
    "source_urls": [
        "https://eodhd.com/financial-apis/commodities-api-historical-prices-for-oil-gas-metals-agriculture-beta",
        "https://eodhd.com/financial-academy/financial-faq/fundamentals-glossary-etf"
    ],
    "requires_user_input": false,
    "requires_extra_plan": true,
    "cadence": "示例資料",
    "sample_labels": [
        "2019",
        "2020",
        "2021",
        "2022",
        "2023",
        "2024"
    ],
    "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
        }
    }
}