This study examines whether fund companies pursue a strategy of actively enhancing the performance of current well-performing funds and young funds at the expense of poorly performing funds and old funds. The observation results reveal that potential conflicts of interest between fund management companies and investors are not prevalent. Particularly, fund companies do not boost the performance of either young funds or prior-well performing funds at the cost of either old funds or prior-bad performing funds, respectively. The key reasons for this finding are the insignificant convex flow-performance relationship and the insignificant spillover effect in the Taiwan mutual fund market.