{
    "id": "ETF-047",
    "category": "ETF",
    "title": "ETF 持倉結構變化觀察",
    "question": "從開始保存資料後，基金持倉結構有何改變？",
    "chart": "waterfall",
    "metric": "相鄰披露權重差（百分點）",
    "secondary": "新增與退出持股數（檔）",
    "x": "持股變化",
    "y": "相鄰披露權重差（百分點）",
    "panels": [
        "權重變化",
        "新增與退出名單",
        "兩份披露日期"
    ],
    "filters": [
        "基金類型",
        "比較基準",
        "顯示幣別"
    ],
    "apis": [
        "FUND"
    ],
    "calculation": "保存完整 FUND 持倉快照並對齊識別碼，計算新舊披露權重差與名單差。",
    "caveat": "權重改變可來自價格變動，不能斷言基金主動買賣；不承諾取得保存前歷史持倉。",
    "data_class": "衍生",
    "complexity": "高",
    "audience": "專業",
    "reach": 5,
    "frequency": 4,
    "decision": 6,
    "clarity": 8,
    "sample_labels": [
        "增加最多",
        "減少最多",
        "新出現",
        "退出披露"
    ],
    "cadence": "每交易日收市後",
    "sample_note": "僅用於合成視覺示意，並非真實行情或投資成果。",
    "category_name": "ETF與基金",
    "score": 52.5,
    "requires_user_input": false,
    "requires_extra_plan": false,
    "source_urls": [
        "https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds"
    ],
    "rank": 923,
    "stage": "P4",
    "svg_file": "mockups/0923-ETF-047.svg",
    "demo_fingerprint": "1fa77efeb7cd783e",
    "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
        }
    }
}