Aggregate demand by insiders predicts time-series variation in the value premium — between 1978 and 2004, a one standard deviation increase in aggregate insider demand in the previous six months forecasts a 53 basis point decline (6.54% annualized) in the expected value premium in the month...

Aggregate demand by insiders predicts time-series variation in the value premium. Insider trading forecasts the value premium because insiders sell (buy) when markets - especially growth stocks - are overvalued (undervalued). This article suggests that investors can use signals from aggregate...