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快訊
快訊詳情
經濟學家回測發現 AI 使用指數選股策略存在超額收益
2026-08-03 19:15:40
幣界網消息,三名經濟學家利用約380萬億個數據,構建指數並對美股進行回測。研究覆蓋2024年1月至2026年4月,結果顯示買入高暴露組並賣空低暴露組的策略,平均每週產生0.641個百分點的收益差,控制相關因素後仍相差約0.56個百分點。該方法受限于樣本周期及數據覆蓋範圍,長期有效性待驗證。
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