{
    "id": "OPT-038",
    "category": "OPT",
    "title": "到期未平倉集中度",
    "question": "大量期權是否集中在同一天到期？",
    "chart": "bar",
    "metric": "各到期日OI占比（%）",
    "secondary": "名義合約數及call/put分拆",
    "x": "到期日",
    "y": "各到期日OI占比（%）",
    "panels": [
        "主圖：各到期日OI占比（%），依到期日排列",
        "輔圖：名義合約數及call/put分拆",
        "明細：到期未平倉集中度的資料列、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",
        "認購／認沽及最長DTE"
    ],
    "apis": [
        "OPTIONS"
    ],
    "calculation": "按exp_date加總OI再除以全鏈OI，以短期到期比例作輔助指標。",
    "caveat": "未平倉到期不代表同額股票一定被交易或交割。 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": "低",
    "audience": "進階",
    "reach": 6,
    "frequency": 7,
    "decision": 7,
    "clarity": 9,
    "sample_labels": [
        "本週",
        "本月",
        "次月",
        "季度",
        "更遠期"
    ],
    "cadence": "美股收市後日更",
    "category_name": "美股期權",
    "score": 68.5,
    "requires_user_input": false,
    "requires_extra_plan": true,
    "source_urls": [
        "https://eodhd.com/marketplace/unicornbay/options"
    ],
    "rank": 637,
    "stage": "P3",
    "svg_file": "mockups/0637-OPT-038.svg",
    "demo_fingerprint": "ab615bf665a1ff77",
    "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
        }
    }
}