{
    "id": "ETF_COMMODITY-08",
    "category": "ETF_COMMODITY",
    "category_name": "商品 ETF／ETC",
    "title": "費用、流動性與規模同類比較",
    "question": "費用、流動性與規模同類比較",
    "chart": "multi",
    "metric": "費用、流動性與規模同類比較",
    "secondary": "多面板",
    "x": "觀察期／樣本",
    "y": "示例數值",
    "panels": [
        "費用、流動性與規模同類比較",
        "多面板",
        "資料明細"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD",
        "FUND_ETF"
    ],
    "calculation": "費用與 AUM 快照；同拆股基準成交額近似。",
    "caveat": "不可把成交量當申購贖回；非交易所基金量資料無此用途。",
    "inputs": "ETF_Data.NetExpenseRatio\nETF_Data.TotalAssets\nEOD.volume\nTECH.splitadjusted.close",
    "extra_inputs": "依左側必要欄位與限制核實",
    "data_class": "衍生",
    "complexity": "原生／衍生，逐標的驗證",
    "rank": 8,
    "stage": "P2",
    "collection": "product",
    "source_urls": [
        "https://eodhd.com/financial-academy/financial-faq/fundamentals-glossary-etf",
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes"
    ],
    "requires_user_input": false,
    "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
        }
    }
}