{
    "id": "fx_spot-04",
    "category": "fx_spot",
    "category_name": "外匯現貨",
    "title": "外匯波動率、ATR 與風險尺度",
    "question": "外匯波動率、ATR 與風險尺度",
    "chart": "line",
    "metric": "外匯波動率、ATR 與風險尺度",
    "secondary": "波動率折線＋ATR 帶",
    "x": "觀察期／樣本",
    "y": "示例數值",
    "panels": [
        "外匯波動率、ATR 與風險尺度",
        "波動率折線＋ATR 帶",
        "資料明細"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD"
    ],
    "calculation": "σ=std(log(P_t/P_(t-1)))×sqrt(年化觀測數)；TR=max(H-L,|H-P_prev|,|L-P_prev|)，ATR 為其平滑均值。",
    "caveat": "年化交易日與假日規則需明示；ATR 單位為 quote/base，不直接等於帳戶風險。",
    "inputs": "EOD: 同一貨幣對 OHLC",
    "extra_inputs": "依左側必要欄位與限制核實",
    "data_class": "原生資料可衍生",
    "complexity": "原生／衍生，逐標的驗證",
    "rank": 4,
    "stage": "P1",
    "collection": "product",
    "source_urls": [
        "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
        }
    }
}