Should I only invest in what I’m interested in? e.g. tech stocks/ETFs. Or should I also look into other industries for diversification?

Thats a really good question. It reflecrs awareness of your limitations.

From a purely theoretical perspective it is not the right move. In theory information is widely available and you should explore all avenues.

In practice this may not hold. We delve in deeper into areas we have interest in. We will, no matter how deep we go, wont be able to go in deep into understanding areas we have no interest in. Interest drives research, and research drives interest.

So yes I agree with your idea. Go into areas you are interested in, but don't neglect other areas. Find ways to stem the gap, by getting advisory services.

Hi Sarah,

There is no harm to invest in what you are interested in, but you will need to consider risk management as well. This means having negatively (or zero) correlated asset classes in your portfolio so that your entire portfolio has a much lower volatility compared to investing in a single asset class.

I'd suggest that if you are going to focus on very specific areas (e.g. single sector, single country, etc), you'll want to limit exposure to around 20% of your portfolio so that you can still get upside, but will be able to limit your downside risk.