{
    "id": "fx_spot-06",
    "category": "fx_spot",
    "category_name": "外匯現貨",
    "title": "即時買賣價差與報價新鮮度",
    "question": "即時買賣價差與報價新鮮度",
    "chart": "line",
    "metric": "即時買賣價差與報價新鮮度",
    "secondary": "bid/ask 折線＋價差表",
    "x": "觀察期／樣本",
    "y": "示例數值",
    "panels": [
        "即時買賣價差與報價新鮮度",
        "bid/ask 折線＋價差表",
        "資料明細"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "LIVE_WS"
    ],
    "calculation": "mid=(ask+bid)/2；spread=ask-bid；spread_bps=spread/mid×10000；quote_age=now-timestamp。",
    "caveat": "頂層 bid/ask 不提供多層深度、各券商報價或可成交量；歷史價差需自行保存 stream。",
    "inputs": "WS /ws/forex: a、b、t\n應用端自行儲存時間序列",
    "extra_inputs": "依左側必要欄位與限制核實",
    "data_class": "需相應即時或日內權限",
    "complexity": "原生／衍生，逐標的驗證",
    "rank": 6,
    "stage": "P1",
    "collection": "product",
    "source_urls": [
        "https://eodhd.com/financial-apis/new-real-time-data-api-websockets"
    ],
    "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
        }
    }
}