Karsten Wenzlaff, Advisor
August 26th, 2025
Jul 26, 2024

Image: Freepik/azerbaijan stockers
Effective risk management is essential for investors to preserve capital and minimize the volatility of their portfolios. Below, we outline the primary risk management strategies:
Closely related to diversification is correlation analysis. Diversifying by simply increasing the number of assets in a portfolio may not have the desired effect of reducing overall volatility if the assets are highly correlated - typically investors should look for assets with less than .50 correlation to their overall portfolio.
When calculating correlation it is important to use a longer history (at least one year of data) as short-term correlations can be very unstable. For this purpose it is important to select a data vendor which offers a data history over five years such as FirstRate Data.
Position sizing involves limiting the amount of capital risked on any single trade. A common rule of thumb is to risk no more than 1-2% of your total trading capital on a single position.
An important point to note regarding portfolio sizing is that the positions need to be constantly rebalanced. A position which is initially 2% of a portfolio could expand to over 10% if the stock appreciates, thus position sizing requires investors to be constantly selling their most profitable positions
Stop-loss orders automatically close a position when the price reaches a predetermined level, limiting potential losses. This imposes a discipline on investors to cut losing positions and avoid extending losses.
Diversification involves spreading investments across different sectors, asset classes, or geographic regions to reduce overall portfolio risk. Diversification typically also improves the overall portfolio performance over the long run (ie timeframes over two years).
ETFs can be a useful tool in diversification as they offer a low-cost method for purchasing a basket of stocks.
Hedging involves taking an offsetting position to reduce the risk of adverse price movements in an asset. There are two types of hedges - direct and proxy hedges. A direct hedge involves taking an offsetting position in a directly related asset - such as hedging a position in AAPL stock with a put option on AAPL which will pay off if the stock declines.
As most investors will have numerous assets in their portfolios, it is often more efficient to use a proxy hedge which correlates with a basket of assets. For example, an SPX put option will often be used to hedge a broad portfolio of US large-cap stocks.
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