Stock market volatility and it's relationship between trading volume

Bu çalışmada öncelikle finansal piyasa volatilitesi ve hisse senedi piyasa volatilitesi açıklanmaktadır. Ardından hisse senedi piyasalarındaki fiyat değişiklikleri (volatilite) ve işlem hacmi arasındaki ilişki açıklanmaktadır. Söz konusu bu ilişkinin yapılan bireysel çalışmalar ve dört grup teoriyle açıklaması ortaya konarak etkin piyasalar ve davranışçı finans perspektiflerinden değerlendirilmesi sunulmaktadır. İMKB'ye ait verilerle Granger nedensellik testi uygulanarak söz konusu ilişki Türkiye için analiz edilmektedir. Elde edilen sonuçlarda hisse senedi getirilerinden işlem hacmine doğru bir nedenselliğin olduğu sonucuna ulaşılmıştır. Bu nedenle İMKB'de dağılımların karışımı hipotezi reddedilirken bilginin sıralı varışı hipotezi kabul edilmektedir. Bu durum aynı zamanda İMKB'nin etkin olmadığını da göstermektedir.In this study,firstly financial market volatility and stock market volatility are explained. Then the relationship between price changes (volatility) and trading volume which is in stock markets is explained. This relationship is displayed by individual studies and four group theories,after ıts evaluations is layed from the perspectives of efficient market hypothesis and behavioral finance. This relation is analysed with the data which belong to IMKB and Granger causality test for Turkey. In the gain results, there is a causality is found which is from stock returns to trading volume. So the mixture of distributions hypothesis is declined and sequential arrival of information hypothesis is accepted in IMKB. This situation also exhibits that IMKB is not a efficient market.In this study,firstly financial market volatility and stock market volatility are explained. Then the relationship between price changes (volatility) and trading volume which is in stock markets is explained. This relationship is displayed by individual studies and four group theories,after ıts evaluations is layed from the perspectives of efficient market hypothesis and behavioral finance. This relation is analysed with the data which belong to IMKB and Granger causality test for Turkey. In the gain results, there is a causality is found which is from stock returns to trading volume. So the mixture of distributions hypothesis is declined and sequential arrival of information hypothesis is accepted in IMKB. This situation also exhibits that IMKB is not a efficient market