{
    "id": "VOL-034",
    "category": "VOL",
    "title": "盤前盤後活動概覽",
    "question": "延長時段活動相對正常時段有多大？",
    "chart": "bar",
    "metric": "分時段成交量（股）",
    "secondary": "相對歷史基線（倍）",
    "x": "標的／事件／情景",
    "y": "分時段成交量（股）",
    "panels": [
        "盤前盤後活動概覽",
        "相對歷史基線（倍）",
        "事件明細與資料日期"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD",
        "INTRADAY"
    ],
    "calculation": "只對可覆蓋延長時段的美股intraday依交易所時間分組，不推廣全球。",
    "caveat": "OHLCV不能識別主動買賣、投資者身份、逐筆籌碼或真實資金淨流入。 盤中方案、市場、時段與歷史深度須按標的驗證；不假設HK與US覆蓋相同。",
    "data_class": "衍生",
    "complexity": "中",
    "audience": "進階",
    "reach": 7,
    "frequency": 8,
    "decision": 8,
    "clarity": 7,
    "sample_labels": [
        "示例甲",
        "示例乙",
        "示例丙",
        "示例丁",
        "示例戊"
    ],
    "cadence": "每日／事件觸發",
    "category_name": "成交量與流動性",
    "score": 75.5,
    "requires_user_input": false,
    "requires_extra_plan": false,
    "source_urls": [
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes",
        "https://eodhd.com/financial-apis/intraday-historical-data-api"
    ],
    "rank": 454,
    "stage": "P2",
    "svg_file": "mockups/0454-VOL-034.svg",
    "demo_fingerprint": "28f84120012c9013",
    "collection": "catalogue",
    "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
        }
    }
}