As an investor, constructing a well-diversified portfolio is one of the most critical steps toward achieving your financial goals. However, building your portfolio is just the beginning. Over time, market fluctuations can cause your carefully chosen asset allocation to drift, leading to unintended changes in your risk profile. This is where portfolio rebalancingcomes in. By regularly rebalancing your portfolio, you ensure that your investments remain aligned with your financial goals and risk tolerance.
In this guide, we will explore why rebalancing is crucial, how often it should be done, and the practical steps involved in adjusting your portfolio to maintain your desired asset allocation. By the end, you’ll have the tools and knowledge to take an active role in managing your investments and keeping your portfolio on track.
Why Rebalancing Is Essential
When you first design your portfolio, you select an asset allocation that reflects your risk tolerance, investment time horizon, and financial objectives. For example, a 70/30 portfolio with 70% stocks and 30% bonds might be appropriate for an investor with a moderate risk appetite. However, market performance can significantly alter that balance over time.
Impact of Market Fluctuations
Different asset classes—such as stocks, bonds, and real estate—do not move in sync. Stocks, for example, tend to be more volatile than bonds. If the stock market experiences a significant rally, the stock portion of your portfolio could grow disproportionately large compared to your bond allocation. What started as a 70/30 portfolio could now look more like 80/20, exposing you to more risk than you originally intended.
Avoiding Unintended Risk
Rebalancing helps you maintain the original balance of risk and return that you’re comfortable with. Without rebalancing, your portfolio could become too heavily weighted in riskier assets like stocks, which increases the likelihood of substantial losses in the event of a market downturn. Rebalancing also prevents you from becoming too conservative as you near retirement or other important financial milestones.
Buy Low, Sell High
Another key benefit of rebalancing is that it naturally encourages the practice of buying low and selling high. When you rebalance, you typically sell assets that have performed well (which are now a larger portion of your portfolio) and buy more of the underperforming assets (which have become a smaller portion). This disciplined approach helps ensure that you’re not chasing the hottest investments at the expense of your long-term strategy.
When Should You Rebalance Your Portfolio?
There’s no one-size-fits-all answer to how often you should rebalance, as it depends on several factors, including your investment strategy, risk tolerance, and market conditions. However, here are three common rebalancing approaches:
1. Calendar-Based Rebalancing
One of the simplest and most common strategies is to rebalance your portfolio at regular intervals—such as annually, semi-annually, or quarterly. By choosing a set time period, you remove emotion from the equation and ensure that your portfolio is adjusted at regular intervals.
- Annual Rebalancing: This is often enough for most long-term investors, as it strikes a balance between minimizing transaction costs and keeping your portfolio in line with your target allocation.
- Quarterly Rebalancing: If you are a more active investor or if market volatility is high, rebalancing every quarter may be more appropriate.
2. Threshold-Based Rebalancing
Another approach is to rebalance when your asset allocation drifts by a certain percentage from your target allocation. For example, you may decide to rebalance if any asset class deviates by more than 5% from its original allocation. This method ensures that you are rebalancing only when it’s necessary, which can help reduce transaction costs.
- Example: If your original allocation was 70% stocks and 30% bonds, you might decide to rebalance only when your stock allocation grows to 75% or shrinks to 65%.
3. A Hybrid Approach
Some investors prefer to combine the two methods by rebalancing at regular intervals unless the portfolio experiences significant drift before the next scheduled rebalancing date. This strategy helps you stay on top of both minor and major portfolio deviations without being too reactive to short-term market movements.
How to Rebalance Your Portfolio: Practical Steps
Now that you understand the importance and timing of rebalancing, let’s walk through the practical steps involved in adjusting your portfolio.
Step 1: Review Your Current Portfolio
The first step is to review your current portfolio to see how far it has drifted from your target allocation. Use an online portfolio tracker or your brokerage platform to analyze the weightings of each asset class (e.g., stocks, bonds, real estate, cash, etc.).
Step 2: Compare to Your Target Allocation
Next, compare your current asset allocation to your target. For example, if your goal is to maintain a 70% stock and 30% bond portfolio, check whether market performance has caused one asset class to dominate.
Step 3: Determine Which Assets to Buy and Sell
Once you’ve identified the drift, decide which assets to sell and which to buy. Here are some key tips:
- Sell Overweight Assets: Sell a portion of the asset class that has grown larger than your target allocation. For example, if stocks now make up 80% of your portfolio when they should be 70%, sell some of your stock holdings.
- Buy Underweight Assets: Use the proceeds from selling overweight assets to buy more of the underweight asset class. In this example, you would buy more bonds to restore the 30% bond allocation.
- Consider Transaction Costs and Taxes: If you’re rebalancing in a taxable account, be mindful of potential capital gains taxes. It may be worth working with a financial advisor to develop tax-efficient rebalancing strategies, such as selling long-term holdings or using tax-loss harvesting. In tax-advantaged accounts (like a 401(k) or IRA), you can rebalance without worrying about tax implications.
Step 4: Automate Where Possible
Many brokerage platforms allow you to automate the rebalancing process. For instance, some Robo-advisorsautomatically rebalance your portfolio as part of their service. Automating this process can remove the guesswork and ensure that your portfolio stays aligned with your goals.
Factors to Consider When Rebalancing
1. Transaction Costs
Rebalancing frequently can lead to transaction fees, especially if you’re dealing with traditional brokerage accounts or mutual funds that charge for trades. To mitigate these costs, use low-cost ETFs or choose brokerage accounts that offer commission-free trades.
2. Taxes
If you’re rebalancing in a taxable account, capital gains taxes can eat into your returns. Be mindful of the tax implications of selling assets. One way to minimize taxes is to rebalance within tax-advantaged accounts, such as IRAs or 401(k)s, where trades won’t trigger a taxable event.
3. Market Conditions
You might be tempted to delay rebalancing in a strong bull market because it feels counterintuitive to sell winning investments. However, rebalancing is about maintaining your risk tolerance—not market timing. Stick to your plan and rebalance consistently to avoid taking on too much risk.
Final Thoughts: Taking Control of Your Financial Future
Rebalancing is a vital tool for long-term investors. By regularly adjusting your portfolio, you can maintain your desired risk level, avoid market extremes, and stay on track to meet your financial goals. While the process can sometimes seem daunting, the benefits far outweigh the effort.
As you continue your investing journey, remember that rebalancing is about discipline and consistency. It forces you to take emotion out of the equation, ensuring that you’re making sound, logical decisions based on your financial objectives. Whether you choose to rebalance on a set schedule, when your asset allocation drifts by a certain percentage, or by automating the process, the key is to stay committed.
By understanding when and how to rebalance, you’re empowering yourself to take control of your portfolio, maintain balance, and achieve the financial future you’ve worked hard to build.