This paper studies how star analyst’s following decreases stock price synchronicity and argues that stars perform this function by inducing market over-reaction based on behavioral finance. The paper finds that, even if both star and non-star analysts have similar abilities (as proxied by similar earnings forecast error), star analyst’s coverage continues to be negatively related to synchronicity, while non-star analyst’s coverage does not. Secondly, the average Ｒ2 of firms followed by stars with the most accurate earnings forecasts is insignificantly different from that followed by stars with the worst accurate earnings forecasts. These results suggest that information is not the only mechanism through which stars lower price synchronicity. Finally, stars cover-age and bullish recommendation revision are positively related to short-term momentum, mid-and long-term reversal and abnormal trading volume, respectively. The above results are consistent with our hypothesis. Over-all, these findings help us understand the roles analysts played in emerging markets and the mechanism through which stock price synchronicity is linked to analyst’s coverage.