{
    "id": "VOL-019",
    "category": "VOL",
    "title": "上漲與下跌日量比",
    "question": "交易活動較集中在升市日還是跌市日？",
    "chart": "bar",
    "metric": "上漲量／下跌量（倍）",
    "secondary": "相對歷史基線（倍）",
    "x": "標的／事件／情景",
    "y": "上漲量／下跌量（倍）",
    "panels": [
        "上漲與下跌日量比",
        "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"
    ],
    "calculation": "固定窗口中按日報酬正負分組sum(volume)求比，不推論交易者方向。",
    "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。",
    "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"
    ],
    "rank": 447,
    "stage": "P2",
    "svg_file": "mockups/0447-VOL-019.svg",
    "demo_fingerprint": "426083b06448f32b",
    "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
        }
    }
}