{
    "id": "ETF_COMMODITY-03",
    "category": "ETF_COMMODITY",
    "category_name": "商品 ETF／ETC",
    "title": "追蹤差異與市場偏離",
    "question": "追蹤差異與市場偏離",
    "chart": "line",
    "metric": "追蹤差異與市場偏離",
    "secondary": "折線",
    "x": "觀察期／樣本",
    "y": "示例數值",
    "panels": [
        "追蹤差異與市場偏離",
        "折線",
        "資料明細"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD",
        "COMMODITIES",
        "USER_MASTER"
    ],
    "calculation": "基金報酬−策略基準報酬；同幣別同頻率。",
    "caveat": "不將基金−現貨殘差全部稱為換倉成本。",
    "inputs": "EOD.adjusted_close\nUSER.確定可用的策略總報酬基準",
    "extra_inputs": "發行人已確認的策略、基準、倍數、重設周期及幣別；使用者改值只能另列假設情境。",
    "data_class": "原生衍生＋產品主檔",
    "complexity": "原生＋主檔／用戶資料",
    "rank": 3,
    "stage": "P0",
    "collection": "product",
    "source_urls": [
        "https://eodhd.com/financial-apis/commodities-api-historical-prices-for-oil-gas-metals-agriculture-beta",
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes"
    ],
    "requires_user_input": true,
    "requires_extra_plan": false,
    "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
        }
    }
}