I got my account yesterday and this is to share with everyone how much it would cost to buy 300 shares of dbs, totalling S$13296 (us$9857). If I use my CBA fund, the total buy fees is about S$36 Vs $15 if I were to use my own funds. I don't find it worthwhile trying to contra with a total buy and sell commission of 0.5%. Meaning that I lose 0.5% and must make more than that in 3 days. Not easy to me