{
    "id": "SEC-046",
    "category": "SEC",
    "title": "產業分類變更紀錄",
    "question": "公司分類改變是否影響了我的產業研究結果？",
    "chart": "table",
    "metric": "分類變更公司數（間）",
    "secondary": "受影響市值權重（%）",
    "x": "分類變更快照",
    "y": "分類變更公司數（間）",
    "panels": [
        "新舊分類",
        "受影響權重",
        "快照與變更覈實"
    ],
    "filters": [
        "成分股範圍",
        "產業分類",
        "加權方式"
    ],
    "apis": [
        "FUND",
        "EXCHANGE"
    ],
    "calculation": "保存每家公司sector／industry字段的各版快照，對照新舊分類及來源更新時間。",
    "caveat": "API 新值不必然等於經濟業務突然轉型；保存前的歷史分類不保證可恢復。；市場廣度必須覆蓋選定完整成分股並列出有效分母，不能直接把 Screener 前 1,000 筆當全市場。",
    "data_class": "衍生",
    "complexity": "高",
    "audience": "專業",
    "reach": 4,
    "frequency": 5,
    "decision": 6,
    "clarity": 9,
    "sample_labels": [
        "改產業",
        "改次產業",
        "新增分類",
        "分類缺失"
    ],
    "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": "產業與市場廣度",
    "score": 53.0,
    "requires_user_input": false,
    "requires_extra_plan": false,
    "source_urls": [
        "https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds",
        "https://eodhd.com/financial-apis/exchanges-api-list-of-tickers-and-trading-hours"
    ],
    "rank": 922,
    "stage": "P4",
    "svg_file": "mockups/0922-SEC-046.svg",
    "demo_fingerprint": "c5046b9cbfa1a352",
    "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
        }
    }
}