{
    "id": "ERN-025",
    "category": "ERN",
    "title": "業績波動率回落",
    "question": "公布業績後 IV 壓縮有多大？",
    "chart": "bar",
    "metric": "公告前後 IV 變化（百分點）",
    "secondary": "合約價格與剩餘天數",
    "x": "公司／事件",
    "y": "公告前後 IV 變化（百分點）",
    "panels": [
        "主圖：公告前後 IV 變化（百分點），依公司／事件排列",
        "輔圖：合約價格與剩餘天數",
        "明細：業績波動率回落的資料列、觀測日期與缺值狀態"
    ],
    "filters": [
        "市場／行業",
        "財政季度／公告日期",
        "期限及平值距離"
    ],
    "apis": [
        "OPTIONS",
        "CALENDAR"
    ],
    "calculation": "固定同一合約，比較公告前後最近兩個日終 volatility；另校驗交易與報價時間。",
    "caveat": "固定合約平值程度會變；IV 變化不等於策略損益。 報告日與財政期末分開；缺失預估不可當零；歷史預估不等於完整當時可得資料。",
    "data_class": "額外方案",
    "complexity": "高",
    "audience": "專業",
    "reach": 6,
    "frequency": 7,
    "decision": 7,
    "clarity": 8,
    "sample_labels": [
        "大幅回落",
        "小幅回落",
        "持平",
        "反而上升"
    ],
    "cadence": "日更；業績公布後重新整理",
    "category_name": "業績與預期",
    "score": 67.5,
    "requires_user_input": false,
    "requires_extra_plan": true,
    "source_urls": [
        "https://eodhd.com/marketplace/unicornbay/options",
        "https://eodhd.com/financial-apis/calendar-upcoming-earnings-ipos-and-splits"
    ],
    "rank": 644,
    "stage": "P3",
    "svg_file": "mockups/0644-ERN-025.svg",
    "demo_fingerprint": "c217561acc7bb6bc",
    "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
        }
    }
}