Risk and diversification
The main way investors will try to mitigate risk is through diversification. Holding a range of assets with uncorrelated returns and influences reduces the likelihood that one event will hit them all in a similar way.
For example, many investors will hold precious metals like gold as it tends to perform differently than stocks. Diversification is about having a squad of team mates with different skills, ready to perform for the good of the overall team.
Assets like stocks, bonds and even a bit of cash can play their part. Within stock holdings, it’s also important to diversify by geography and sector too.
Be careful of diworsification, though there is some research to suggest that, by the time you have added about 20 to 30 stocks in different geographies and industries to your portfolio, most of the reduction in risk that can be achieved has been done.
This doesn’t take into account the other assets you could possibly hold, like bonds, but is an important point to make. We can fall into the trap of thinking more is always better. But this brings in a risk of its own, namely that you start to introduce lower quality stocks into your portfolio and dilute the contribution your high performers can have.
What’s more, if you are actively choosing stocks, you could end up basically replicating the index, in which case it might just be less of a headache to buy an ETF index tracker instead