Key insights
- Portfolio rebalancing is an important risk management tool.
- Market movements naturally shift portfolio weights, often increasing risk unintentionally over time.
- A disciplined rebalancing process helps investors maintain diversification and align portfolios with long-term objectives.
- Volatility can create opportunities to rebalance thoughtfully — adding to underweighted assets and trimming exposures that have grown above their target allocations.
- Rebalancing is both an investment and tax decision, requiring a coordinated, portfolio-level approach prioritizing cash flows and tax-advantaged accounts to maintain target allocations and reduce capital gains.
Stay aligned with your portfolio goals as markets shift.
Even if you haven’t made any changes to your portfolio recently, it might still look very different than it did a few years ago. That’s because markets rarely move in sync. As some asset classes rise and others lag, a portfolio’s original allocation can shift — sometimes more than investors realize.
This gradual change, known as portfolio drift, can affect both risk and long-term expectations. Rebalancing is how investors bring portfolios back toward their intended design, helping keep risk aligned with long-term goals rather than recent market performance.
Why portfolios drift over time
Over time, markets do what they’re designed to do: They move — sometimes sharply, sometimes unevenly. Portfolio drift is a natural outcome of market behavior. Asset classes rarely move in lockstep, and periods of strong performance in one segment can quickly lead to overweight positions.
The two most common examples:
- Strong equity markets can cause an overweight to stocks
- Market corrections can create an overweight in cash or bonds
Left unaddressed, this drift can materially change the risk-return profile of a portfolio. Rebalancing is the mechanism that helps investors course-correct systematically and intentionally.
Rebalancing is about risk management, not forecasting
A common misconception is that rebalancing requires predicting or timing market direction. In practice, the opposite is true.
Rebalancing is a disciplined, rules-based process designed to maintain diversification, keep risk exposure aligned with objectives, and enforce consistency during periods of both market optimism and market stress, when emotional impulses are often strongest.
At its core, rebalancing often requires trimming assets that performed well and re-allocating to areas that may be temporarily underrepresented. While this can feel counterintuitive or unsettling in the short term, it’s central to long-term portfolio durability.
Portfolio construction and risk control are equally important drivers of long-term outcomes
Volatility creates rebalancing opportunities
Periods of heightened market volatility can feel uncomfortable — but they often create the clearest rebalancing opportunities while emphasizing process over prediction.
When asset prices move sharply:
- Equity drawdowns may present opportunities to restore equity exposure at more attractive valuations
- Dislocations in fixed income may allow portfolios to reset yield and duration
Alternatives or cash strategies may provide cash flows to rebalance traditional assets.
Tax awareness matters
In taxable portfolios, indiscriminate selling to rebalance can trigger capital gains, potentially offsetting the long-term benefits of maintaining target allocations.
Before selling assets, investors should first rely on cash flows, dividends, and new contributions to realign allocations while improving after-tax outcomes and preserving long-term compounding.
By directing trades toward tax-advantaged accounts such as IRAs or retirement plans, investors can realign exposures without triggering unnecessary capital gains, leaving taxable accounts more intact.
Our perspective at CLA
To help clients stay invested through market cycles and maintain confidence in their financial plan, CLA’s investment committee emphasizes:
- Clear allocation targets aligned with client goals
- Regular monitoring of portfolio drift and risk concentration
- Disciplined implementation grounded in diversification
Decisions to rebalance are evaluated in the context of client objectives, income needs, tax considerations, and overall portfolio construction — not in isolation.
How CLA can help with portfolio rebalancing
We take the time to understand your goals, time horizon, and tolerance for risk — and design portfolios with intention and discipline.
Through ongoing monitoring and thoughtful rebalancing, we aim to keep risk aligned with objectives, navigate changing market conditions with clarity, and support steadier long-term outcomes.
If you’re curious how market movements may have shifted your portfolio — or whether your allocation still reflects your goals — we’re here to help you review the full picture and make confident, informed decisions.