詹姆斯·奧肖內西，奧肖內西資産管理公司主席兼CEO，該公司是一傢位於康涅狄格州的資産管理公司。奧肖內西曾在貝爾斯登擔任投資組閤經理、係統證券主任與高級管理主任。他是證券定量化分析與投資管理領域的專傢。同時他還善於投資模型與調研決策係統的運作。從1995年開始。他就將標準普爾數據庫的投資策略數據進行定量化分析，並將結果整理到他的著作《投資策略實戰分析》中，這本書是馳名華爾街的經典暢銷書。奧肖內西因其投資策略而榮獲美國專利，並被福布斯網站評為最傳奇的投資者之一。

Historically tested long-term strategies that "always" outperform the market "O'Shaughnessy's conclusion that some strategies do produce consistently strong results while others underperform could shake up the investment business."

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