By employing ETFs 0050 and ETFs 0056 as our investigated samples, we explore whether adopting spread trading for such ETFs would have better performance as compared with long term investments. We then reveal that 9.76% returns are shown for spread trading ETFs as compared with 18.6% returns for long-term investment, indicating that long-term investment strategies would be better than spread trading strategies. However, while trading ETFs 0056, we show that the performance of adopting spread trading strategies might not worse off those of long-term investment strategies. These revealed findings would be beneficial for investors in investing ETFs 0050 and ETFs 0056 regarded as rather essential targets for many investors in Taiwan.