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"Penelitian ini bertujuan untuk mengidentifikasi apakah rekomendasi saham dari perusahaan efek yang dimuat dalam harian Bisnis Indonesia dapat mempengaruhi return, volatilitas return dan volume perdagangan.Untuk mengukur abnormal return digunakan metode event study. Volatilitas return diukur dengan return kuadrat, dan volume perdagangan diukur dengan aggregate turnover.Berdasarkan hash pengujian ditemukan adanya abnormal return yang signifikan pada sate hari sebelum rekomendasi bell, sedangkan untuk saham yang mendapat rekomendasi jual, ditemukan adanya abnormal return negatif pada periode sebelum rekomendasi diterbitkan. Walaupun rekomendasi mempengaruhi volume perdagangan dan volatilitas return, namun secara statistik tidak signifikan.

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The objective of this study is to examine whether the stock recommendations, given by the brokerage houses and published in Bisnis Indonesia Daily, have any effect on return, return volatility, and trading volume activity.

The abnormal return is measured using the event study methodology. Return volatility is measured by squared return, dan trading volume activity is measured by using aggregate turnover formula. To measure the abnormal return, we use daily trading data, whereas intraday trading data is used to measure return volatility and trading volume activity.

The results show that there is significant abnormal return one day before buy recommendations are published. Negative abnormal return is found preceding the published sell recommendations. Eventhough those recommendations affecting trading volume activity and return volatility, but the effects are not statistically significant."