Singapore’s Straits Times Index (SGX: ^STI) crossed the 4,900 mark for the first time last week. Buoyed by the bull run, JP Morgan (NYSE: JPM) has raised its target for the index to 6,000 by the end of this year. Yet, a recent poll we ran revealed that investors are thinking about selling. Here’s the thing: there are good reasons and bad reasons to sell. So, let’s talk about them.

Good Reason #1: Your life needs the money more than the market does

Remember: investing is a vehicle to get you where you want to go. You have heard me say this before: you are successful when you achieve your own goals — not because you beat the market and not because you held on longer than your kopitiam buddy. But because investing did what it was supposed to do: fund a better life. So, if taking some money off the table helps you in your life, that’s a good reason....