Public mutual is not meant for short term investment, i yielded great profits in last year with investment in PRSEC and PFES about 8% to 8.5% ROI, but didn't sell out at that time , because i was just started to invest for 1 year.

Then this year because of the US-China Trade War now that both my funds are showing -ve in return meaning making a loss, but i will still continue invest because China's market won't be forever down and it will rise again is just the matter of time.

I would suggest to invest using EPF instead of cash, because of the sales charge % is different 3% EPF, and 5.5% for cash, therefore the breakeven point is lower if you invest using EPF. Unless you really have loads of cash till you don't know where else to invest.

My investment conditions:
1. Have sufficient cash flow in EPF or Cash.
2. Plan to invest long term 5 to 10 yrs or above.
3. Invest when price down, sell out when price high.
4. Try look into new fund which selling at lower NAV price per unit.
5. Overseas fund high risk but high return. 
6. Local fund can invest but need to wait and be patient.