The term may sound like an oxymoron, but what I meant is the pool of cash that cannot be withdrawn or spent easily due to regulatory reasons. With this reasoning, one of the first things that come to mind for a local would be one's Central Provident Fund (CPF) monies, and the next would be the Supplementary Retirement Scheme (SRS) funds.

But these pools can be invested, though subjected to selected financial instruments and for CPF, quantum quotas. Currently CPF is paying at least 2.5% for the Ordinary Account (OA), and 4.08% for the Special Account (SA).

Whilst for my case I would not use the SA for investing given the relatively high and almost riskless rate, the 2.5% yearly returns for OA can be statistically surpassed depending on the duration and type of assets invested, though with an