{
    "id": "OPT-037",
    "category": "OPT",
    "title": "成交與未平倉變動象限",
    "question": "熱鬧成交伴隨未平倉增加還是減少？",
    "chart": "scatter",
    "metric": "未平倉變化（張）",
    "secondary": "權利金變化與DTE",
    "x": "當日成交量（張）",
    "y": "未平倉變化（張）",
    "panels": [
        "主圖：未平倉變化（張），依當日成交量（張）排列",
        "輔圖：權利金變化與DTE",
        "明細：成交與未平倉變動象限的資料列、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",
        "最低前日OI"
    ],
    "apis": [
        "OPTIONS"
    ],
    "calculation": "按合約繪volume對open_interest_change，用價變色彩、DTE分面並保留前日OI。",
    "caveat": "不能從OI與成交反推買賣方向或開平倉逐筆組成。 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": "進階",
    "reach": 6,
    "frequency": 6,
    "decision": 6,
    "clarity": 8,
    "sample_labels": [
        "低量增倉",
        "高量增倉",
        "低量減倉",
        "高量減倉"
    ],
    "cadence": "美股收市後日更",
    "category_name": "美股期權",
    "score": 62.0,
    "requires_user_input": false,
    "requires_extra_plan": true,
    "source_urls": [
        "https://eodhd.com/marketplace/unicornbay/options"
    ],
    "rank": 776,
    "stage": "P3",
    "svg_file": "mockups/0776-OPT-037.svg",
    "demo_fingerprint": "7e12b51b56eb1a6e",
    "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
        }
    }
}