Understanding risk and reward: how to balance your portfolio

By

Théo Ramos

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April 9, 2025

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10

Min Read

Understanding risk and reward: how to balance your portfolio

Introduction

Investing always involves a balance between risk and reward. While higher risks often come with the potential for higher returns, they can also lead to significant losses. Understanding different types of investment risks and employing portfolio diversification strategies can help mitigate these risks and optimize long-term financial success.

Major types of investment risks

To make informed investment decisions, it’s crucial to understand the various risks that can impact a portfolio:

  1. Market risk – The risk of investments losing value due to economic downturns, political events, or market volatility.
  2. Credit risk – The possibility that a bond issuer or borrower defaults on their obligations, affecting fixed-income investments.
  3. Liquidity risk – The risk of not being able to sell an investment quickly without a significant price reduction.
  4. Inflation risk – The potential erosion of purchasing power due to rising inflation, which can diminish real returns.
  5. Interest rate risk – The impact of changing interest rates on bond prices and other fixed-income securities.
  6. Sector-specific risk – Exposure to risks tied to a specific industry, such as technology or healthcare.
  7. Geopolitical risk – Political instability, trade disputes, or economic sanctions that may affect investments in certain regions.

What is your risk profile and why is it important?

Risk profiling is a process that helps you identify the optimal level of risk that is just right for you as an investor, based on the following factors:

  1. Tolerance: your willingness to take risks, which is subjective and depends on your financial goals, time horizon and level of comfort with fluctuations in value.
  2. Goals: these could include saving for a pension or house deposit. You may be willing to accept a higher level of risk for long-term goals with the time to recoup losses if necessary.
  3. Time horizon: the shorter the time horizon, the more cautious you’re likely to be.
  4. Knowledge: experienced investors are likely to be comfortable with a higher level of risk than beginners.
  5. Capacity for loss: your financial ability to absorb losses without affecting your standard of living or critical financial goals.
  6. Liquidity needs: if you expect to need access to your funds in the short term, you may need to take a more conservative approach.

The role of portfolio diversification

Diversification is the key strategy to manage investment risk while still capturing potential growth. By spreading investments across different asset classes, industries, and geographical regions, investors can reduce the impact of market fluctuations on their portfolios.

Building a diversified portfolio

A well-balanced portfolio should include:

  1. Stocks (Equities): Provide growth potential but come with higher volatility.
  2. Bonds (Fixed-Income): Offer stability and regular income, but lower returns compared to stocks.
  3. Real Estate: A tangible asset class that can provide income through rent and appreciation over time.
  4. Commodities: Gold, silver, and oil can act as hedges against inflation and market downturns.
  5. Cryptocurrency: Provide additional diversification, but often carry higher risks.

Risk management techniques

  1. Use correlation data to build a smarter portfolio

When building a diversified portfolio, it’s not enough to simply invest in multiple regions—you need to understand how those regions move in relation to each other. Correlation measures the degree to which asset prices move together:

A correlation close to 1 means assets tend to move in the same direction, like temperature and ice cream sales: as the temperature rises, ice cream sales tend to increase.
A correlation close to 0
means their movements are largely independent, such as with shoe size and intelligence or favorite color and music preference.
A negative correlation
means they move in opposite directions, like the relationship between temperature and clothing layers, where one goes up as the other goes down.

A. Geographical diversification

By studying international equity correlation data, you can fine-tune your asset allocation in order to reduce portfolio volatility.

Example 1: U.S. vs Europe - High Correlation

3-year correlation: 0.88 (Morningstar US Market TR & Morningstar DM Europe xUK GR)

These two developed markets are closely linked economically and tend to respond similarly to global events.

Example 2: Europe vs. American emerging markets - Moderate diversification

3-year correlation: 0.60 (Morningstar DM Europe xUK GR & Morningstar EM Americas GR)

American emerging markets are more sensitive to commodity prices, currency volatility, and local political risk-factors less relevant to developed European economies.

B. Sector diversification

We saw a matrix correlation based on asset location, but you can also focus on matrix correlation based on equity sector:

Utilities and energy have been the sectors that have performed most differently from the broad U.S. market. In 2022 and again in 2023, energy stocks decoupled from the broad US market. The consumer defensive sector has also had a somewhat lower correlation with the US market than other sectors. Meanwhile, the technology sector's performance movements have been consistently correlated with those of the broad US market about 90% of the time.  

C. The effect of global crises on stock market correlations

Another point to highlight is that the correlation between assets is not fixed. Correlations can change due to market conditions, economic events, or changes in monetary policy. For example, during the October 1987 stock market crash, correlations between the Canadian stock market and other markets surged. The correlation with the U.S. jumped from 0.54 pre-crisis (Aug 1987) to 0.91 during the crisis (Oct 1987), while the correlation with international markets rose from 0.10 to 0.60 over the same period. This illustrates how global markets tend to move more closely together during periods of financial stress, reducing the benefits of diversification.

Source: Ibbotson Associates.

Another example below: the correlation coefficient for a diversified portfolio versus the Morningstar U.S. Market Index.

  1. Rebalancing regularly

Adjusting asset allocation periodically to maintain the desired risk level.

Suppose your portfolio is composed of 60% stocks, 35% bonds, and 5% REIT shares: a balanced mix intended to match a specific investment strategy.

After six months, the portfolio shifts due to market changes - particularly a strong performance in stocks. As a result, stocks now represent 65% of the portfolio, while bonds drop to 32% and REITs to 3%. This drift changes the risk profile of the portfolio, potentially exposing the investor to more volatility than originally planned.

To correct this, the investor performs a rebalancing by selling some stocks and using the proceeds to buy more bonds and REIT shares. This action restores the original allocation of 60% stocks, 35% bonds, and 5% REITs, aligning the portfolio back with its intended risk and return objectives.

Source: Investopedia
Source: Investopedia


A stop-loss and a take-profit are key levels traders set in advance to manage their positions. A stop-loss helps limit losses by triggering a sale if the price drops below a certain threshold, often when a key support level is broken. In contrast, a take-profit locks in gains by selling when the price reaches a target level, typically near a strong resistance, where the potential upside is no longer worth the risk.

      3. Setting stop-loss and take-profit

Using Technical Insight, I can set a stop-loss or take-profit level on any asset.

A. Trading Central trailing stops

Trading Central trailing stops utilize a proprietary algorithm for improved position exits. These stops seek to minimize risk while maximizing profit for either long or short positions taken upon identification of a Technical Event. The algorithm is based on a statistical analysis of the historical prices, using a price filter line algorithm with two different noise statistics. As a trailing stop, the calculated stop level always follows the direction of profitable close price movement, yet will not reverse direction if close prices reverse, thereby protecting a portion of any gains made in the position. The trader has the option to control the proximity of the stop via a slider mechanism with labels "Tight", "Medium" and "Loose".

The stop level is recalculated at the end of every trading session. Intraday stop penetration alert notifications are sent where intraday price services are available and when chosen by the trader, otherwise, stop penetration alerts are calculated after session hours based on the session close price relative to the previous day's trailing stop level. Note that only one alert notification is sent, with future stop monitoring on that stock being disabled once the first notification is sent.

B. Trading Central percent trailing stops

Percent trailing stops maintain a fixed percentage offset level when prices are in the profitable direction. As a trailing stop, the calculated stop level always follows the direction of profitable close price movement, yet will not reverse direction if close prices reverse, thereby protecting a portion of any gains made in the position.

The stop level is recalculated at the end of every trading session. Intraday stop penetration alert notifications are sent where intraday price services are available and when chosen by the trader, otherwise, stop penetration alerts are calculated after session hours based on the session's close price. Note that only one alert notification is sent, with future stop monitoring on that stock being disabled once the first notification is sent.

Example:

Here, let’s suppose I want to catch the rebound after an important sell-off on Apple. I have two possibilities to manage my exit risk:

Use a trading central trailing stop:

If I want my stop to adapt dynamically to price action, I can use the Trading Central trailing stop, currently set at $160.77. It automatically adjusts as the price moves up, locking in profits while leaving room for the rebound to develop. This is especially useful in volatile situations like this, where fixed levels might be too tight and get triggered prematurely.

Set a percentage trailing stop:

Alternatively, I can use a manual stop loss based on a percentage from my entry, here 10% below the current price. Entering at $172.83, my stop would be placed around $155.18.

  1. Hedging strategies

Using options, futures, or inverse ETFs to protect against downside risks.

How Option Insight can help you to manage your risk?

Using Option Insight: I can build a strategy, in this situation our investor is long on Tesla and wants to limit his risk. He can select among different strategies, then he will receive different outcomes with various possibilities. Option Insight helps to cover his position and therefore, manage its risk.

Asset allocation strategies

Asset allocation is the process of distributing investments among various asset classes based on risk tolerance and investment goals. Some common approaches include:

Conservative allocation:
A higher percentage of bonds and cash equivalents with a smaller allocation to stocks.
Example:

  • 60% Bonds (government and corporate bonds)
  • 25% Cash & cash equivalents (money market funds)
  • 15% Stocks (primarily large-cap, dividend-paying stocks)

Balanced allocation:
A mix of stocks and bonds to maintain moderate risk and growth potential.
Example:

  • 50% Stocks (35% U.S. stocks, 15% international)
  • 40% Bonds
  • 10% Cash or alternative assets

Aggressive allocation:
A higher proportion of stocks, including growth stocks and international equities, for greater long-term returns but with higher volatility.
Example:

  • 80% Stocks (50% U.S. stocks, 30% emerging/international stocks)
  • 15% Bonds
  • 5% Cash or alternatives

Stay informed and monitor market conditions

Maintaining an up-to-date view of the markets is essential for effective portfolio risk management. As we saw above with the 1987 crash: volatility, sentiment shifts, or sudden changes in news flow can all impact the correlation between assets or the overall risk profile of a portfolio.

Tools like Market Buzz empower investors to track such developments in real time. For example, a sudden spike in news volume around U.S. equities might signal rising political uncertainty or unexpected announcements. These changes can influence both volatility and correlation with other markets like the Europe or emerging economies.

With Market Buzz’s sentiment analysis, investors can quickly gauge whether the overall tone of news is positive or negative. This helps in identifying whether market reactions are likely to be driven by fear, optimism, or more neutral narratives, essential information when making reallocation decisions.

Example:

Looking at Top Buzzing I can see that LEVI is among Top Buzzing ranking

If I click on the bubble and go through News Analytics, I can understand quickly why Levi Strauss is among the ranking:

Here, the overall mentions are surging, with the confirmation on the mentions' history chart. The “Most discussed topics” are “Earnings Announcement” and “Earnings above expectations” and looking quickly into the News feed an article from Reuters mentions that the company released first quarter earnings above expectations and confirmed its annual outlook.

Conclusion

Understanding risk and reward is fundamental to making sound investment decisions. Just like diversification relies on combining uncorrelated assets, effective portfolio management requires a combination of tools. By employing strategic asset allocation, maintaining a diversified portfolio, and using risk management techniques, investors can balance potential returns while minimizing exposure to financial downturns. The key is to align investments with individual risk tolerance, financial goals, and time horizon to achieve long-term success.

Théo Ramos

Junior Technical Analyst
Théo has a Master's degree in Finance and Financial Risk Management from the University of Rouen. Théo joined Trading Central in 2020 as a junior technical analyst to assist the team in producing research on the equity markets.

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