{
    "id": "QNT-006",
    "category": "QNT",
    "title": "策略成本侵蝕瀑布",
    "question": "毛回報有多少被費用和滑價吃掉？",
    "chart": "waterfall",
    "metric": "累積損益（本位幣）",
    "secondary": "基準／成本後回報（%）",
    "x": "損益組成",
    "y": "累積損益（本位幣）",
    "panels": [
        "策略成本侵蝕瀑布",
        "基準／成本後回報（%）",
        "事件明細與資料日期"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD",
        "USER"
    ],
    "calculation": "由模擬毛損益逐項扣佣金、交易稅及用戶滑價模型，與淨損益核對。",
    "caveat": "需自建回測引擎與執行假設；歷史結果不是未來保證，不以最佳樣本代替保留測試。 用戶設定／持倉或模擬交易不由EODHD提供。",
    "data_class": "用戶資料",
    "complexity": "高",
    "audience": "進階",
    "reach": 9,
    "frequency": 8,
    "decision": 10,
    "clarity": 8,
    "sample_labels": [
        "毛損益",
        "佣金",
        "交易稅",
        "滑價",
        "淨損益"
    ],
    "cadence": "每次回測／每週監控",
    "category_name": "量化策略與回測",
    "score": 88.5,
    "requires_user_input": true,
    "requires_extra_plan": false,
    "source_urls": [
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes"
    ],
    "rank": 128,
    "stage": "P1",
    "svg_file": "mockups/0128-QNT-006.svg",
    "demo_fingerprint": "02651c7d2f4aa98e",
    "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
        }
    }
}