{
    "id": "OPT-049",
    "category": "OPT",
    "title": "期權覆蓋與可用鏈報告",
    "question": "想研究的標的有足夠歷史和合約嗎？",
    "chart": "table",
    "metric": "有效鏈覆蓋率（%）",
    "secondary": "首個歷史日、到期數與缺值",
    "x": "標的股票",
    "y": "有效鏈覆蓋率（%）",
    "panels": [
        "主圖：有效鏈覆蓋率（%），依標的股票排列",
        "輔圖：首個歷史日、到期數與缺值",
        "明細：期權覆蓋與可用鏈報告的資料列、觀測日期與缺值狀態"
    ],
    "filters": [
        "美股標的與報價日",
        "到期日與行權價",
        "最低到期數和歷史日數"
    ],
    "apis": [
        "OPTIONS"
    ],
    "calculation": "由underlying-symbols清單對照目標股票池，逐一計可得歷史範圍和雙邊價完整合約比例。",
    "caveat": "覆蓋範圍及歷史深度依產品與標的變化；不能假設支援港股。 Marketplace 額外方案；僅美股日終快照，不含逐筆買賣方向或券商庫存；先驗證合約乘數。",
    "data_class": "額外方案",
    "complexity": "中",
    "audience": "專業",
    "reach": 4,
    "frequency": 5,
    "decision": 6,
    "clarity": 9,
    "sample_labels": [
        "有完整鏈",
        "有鏈但缺價",
        "歷史較短",
        "不在支持清單"
    ],
    "cadence": "美股收市後日更",
    "category_name": "美股期權",
    "score": 53.0,
    "requires_user_input": false,
    "requires_extra_plan": true,
    "source_urls": [
        "https://eodhd.com/marketplace/unicornbay/options"
    ],
    "rank": 919,
    "stage": "P4",
    "svg_file": "mockups/0919-OPT-049.svg",
    "demo_fingerprint": "345e3aab5d5caab0",
    "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
        }
    }
}