Short-term price momentum has become a globally popular topic of research, with a plethora of international evidence proving its profitability. This paper investigates short and medium term momentum strategies on the Johannesburg Stock Exchange (JSE) over the period January 1995 to December 2010. The study further considers the interaction between momentum and liquidity, proxied by turnover. We find that there is a significant momentum effect on the JSE over the sample period, yet the magnitude of profits declines in the latter half of the sample. When combining liquidity with momentum, the high and intermediate liquidity momentum strategies achieve consistently significant average excess returns, yet the low liquidity momentum results are largely inconsistent and insignificant. The findings of this paper are in line with the behavioural decomposition of the momentum effect, as there is evidence of both a short-term momentum effect and the beginnings of a longer-term reversal.
Journal Type : Uluslararası
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