Hsieh, Wen-liang G.; He, Huei-Ru - In: Journal of International Financial Markets, … 31 (2014) C, pp. 187-215
This paper examines the predictive ability of index option put-call volume on next-day index movements in the Taiwan market. We find that foreign institutional investors are the most informed traders, with their predictive ability being more apparent in a downward market. When engaging in...