Year-End Portfolio Rebalancing: When Doing Nothing Can Increase Risk

When markets have a strong year, leaving a portfolio alone can feel like the easiest decision. Winners continue to grow and investors may be reluctant to sell investments that have performed well.

But doing nothing is still a decision. Over time, market movements can quietly shift a portfolio away from its intended allocation, potentially exposing an investor to more risk than they originally planned to take.

Year-end can be a useful opportunity to review those changes and determine whether your portfolio still reflects your long-term financial strategy.

How Your Portfolio Can Drift Over Time

Suppose your investment strategy calls for a specific balance between stocks, bonds and other assets. If stocks significantly outperform other investments, equities can gradually represent a larger percentage of the portfolio.

The portfolio may have generated strong returns, but it has also changed. You may now have greater exposure to stock market volatility than your financial plan intended.

The same issue can occur within individual asset classes. Strong performance from one sector, company or investment style can create unintended concentration. This can be particularly important for executives and business owners who already have significant exposure to a particular company or industry through stock compensation or business ownership.

Rebalancing involves evaluating those changes and bringing the portfolio back toward its strategic targets.

Rebalance Based on Your Plan, Not a Prediction

Rebalancing should not be an attempt to determine which investments will outperform next year. The objective is risk management.

Rather than asking, “What will the market do in 2027?” consider whether your current allocation remains appropriate for your goals, time horizon, liquidity needs and tolerance for volatility.

A year-end portfolio review might consider:

• Whether market performance has created significant allocation drift
• Changes in your financial goals or expected cash needs
• Concentrated stock positions or other areas of excessive exposure
• Opportunities to coordinate rebalancing with tax-loss harvesting
• Whether new contributions or withdrawals can help restore target allocations

For taxable portfolios, rebalancing also requires attention to capital gains. Selling appreciated investments solely to reach an allocation target could create an unnecessary tax burden. In some cases, directing new cash toward underweight investments, using portfolio withdrawals strategically or coordinating gains with available losses may help achieve the desired result more tax efficiently.

Discipline Matters More Than the Calendar

December 31 is not a deadline for rebalancing. Some portfolios may require adjustments during the year, while others may remain appropriately positioned without any trades at all.

Year-end simply provides a natural checkpoint to make sure investment decisions remain connected to the financial plan.

At Illumination Wealth, we believe portfolio management should be guided by long-term objectives rather than short-term forecasts. Reviewing your allocation before the new year can help ensure that strong markets, volatile markets or changing circumstances have not quietly altered the amount of risk you are taking. Contact us today to discuss your year-end wealth planning.