Is it wise to include cpf as part of my portfolio? I am 30 and I have 51% in stocks, 40% in cpf (oa, sa, ma) and 9% cash. ?

I guess at point of retirement when you can withdraw out, then yes, else if between 30-55/65, prob wiser to not to.

Hi Andrew, i keep track of my CPF but still prefer to keep it as a separate portfolio due to the difficulty in rebalance it alongside other cash-funded investments.

Yes, it is definitely wise to include CPF as part of your portfolio. I would recommend you to top up $7000 annually into your SA to take advantage of the tax incentives. I wonder if insurance is missing from your portfolio. Insurance should form the base of your portfolio, with investment at the top. Just my humble opinion.

CPF is part of my net worth but not part of my investment portfolio.

What is the main motivation to consider CPF as your portfolio? If you using CPF to invest, then i think it make sense to include the equities in your portfolio.