I think most people confuse
It say , trading share in MALAYSIA

Which mean, shares you bought from within Malaysia exhange like Bursa Saham is taxable under business income.
But the profit / capital gain is not taxable

Literally, shares that issued by company in Malaysia and you buy it, is taxable

But shares you bought from oversea exhange is not taxable

Try look up at 2016 taxable income by... one of the big4 accounting

Very detailed