What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
First compare your current allocation with the target you already chose. If stocks have fallen, they may now make up a smaller share of your portfolio; rebalancing means restoring the established mix when it has drifted—not automatically changing your plan because markets are down. Review the target itself only if your goals, time horizon, risk tolerance, or financial situation have changed.
What rebalancing does—and what it does not do
Rebalancing returns a portfolio to a chosen asset allocation. The SEC’s Beginners’ Guide to Asset Allocation, Diversification, and Rebalancing defines it as bringing a portfolio back to its original allocation mix.
As an Amazon Associate I earn from qualifying purchases.
A fall in stock prices can leave stocks below their target weight, but the price move alone does not determine whether you should trade. The decision depends on how far the portfolio has drifted, your chosen review rule, costs, and whether the target remains appropriate. The SEC cautions against rash all-in or all-out decisions and market timing; its former investor-education director, Lori Schock, put it this way: “Remember, it’s time in the market that counts, not timing the market.” That is general investor education, not a promise about returns.
Free tools Windows power users keep installed
One-click scans. No signup required.
Stocks can lose money. The SEC notes that large-company stocks as a group have lost money on average about one out of every three years; this is broad historical context, not a forecast for any stock or future period.
#1 Best Overall
Step 1: Check whether your target still fits
Find the allocation you previously selected and the reason for it. A changed goal, shorter or longer time horizon, different tolerance for investment risk, or changed financial circumstances may be a reason to review the target itself. A market decline, by itself, does not establish that the target should change.
Keep the two decisions separate: first decide whether the plan still fits; then, if it does, assess whether your holdings need rebalancing to match it. Fidelity also recommends considering your broader financial security and emergency savings when reviewing a plan (Guide to stock market dips and downturns, July 30, 2026).
Rank #2
Step 2: Calculate your current allocation
- Include the relevant accounts. Gather the investment accounts that belong in the portfolio you are assessing. Looking at a single account in isolation can obscure the overall mix.
- Group holdings consistently. Use categories that match your target, such as stocks, bonds, and cash, or more detailed categories if your plan uses them. There is no single category set or target allocation for everyone.
- Add each category’s value and the portfolio total. For each category, divide its value by the total value of the included portfolio and multiply by 100 to get its current percentage.
For example, if a portfolio is worth $100,000 and stocks are worth $60,000, stocks represent 60% of that portfolio. This is only an arithmetic example, not a suggested allocation. Fidelity’s Rebalancing your investments (May 5, 2026) likewise advises comparing current holdings with the target.
Recommended Free Tools
Step 3: Compare actual weights with your target
Put each current percentage beside its target percentage. Categories above target are overweight; those below target are underweight. Decide whether a difference is large enough to act on under the rule you chose. The SEC describes both calendar reviews and rebalancing when allocations move beyond predetermined thresholds, but neither it nor FINRA sets a universal drift threshold.
Schock illustrates the arithmetic with a hypothetical portfolio that began at 80% stocks and 20% bonds and later shifted to 85% stocks and 15% bonds. Selling five percentage points of stocks and buying bonds would return it to the example’s original mix. Those percentages illustrate one possible adjustment; they are not a recommended allocation.
Step 4: Choose how to restore the mix
| Method | How it works | What to weigh |
|---|---|---|
| Redirect new contributions | Put upcoming deposits toward underweight categories. | Usually avoids selling, but depends on available contributions and may not close a large gap quickly. |
| Use available cash or new money | Invest cash or other available funds in underweight categories. | Can reduce the need to sell, but may be insufficient to correct a substantial drift. |
| Sell overweight holdings and buy underweight holdings | Sell enough of the overweight category and use proceeds to purchase the underweight category. | Can adjust the mix more directly; consider transaction costs and possible taxable gains in a brokerage account. |
You can combine methods—for example, direct contributions toward underweight categories and trade only if the remaining gap still exceeds your chosen threshold. Check not only the split between asset classes but also whether the investments within each class remain aligned with your goal.
Rank #4
Step 5: Check taxes and costs before trading
A sale at a profit in a taxable brokerage account may create a taxable gain. Transaction fees and sales charges can also reduce the amount left invested. The effect depends on the account and the specific transaction; general investor guidance does not determine your personal tax treatment. Check your account terms and, if needed, ask a qualified tax professional before selling. Redirecting new contributions may help reduce the need for sales.
Step 6: Set a review rule for next time
Choose a process in advance rather than reacting to every market move. Common options include:
- Calendar review: Check the allocation on a schedule, such as during an annual investment review. FINRA says investors may consider whether to rebalance once a year as part of that review, while emphasizing that there is no official timeline (Asset Allocation and Diversification).
- Threshold review: Check whether any category has moved beyond a predetermined distance from its target.
- Hybrid review: Review periodically and trade only if a category has also crossed a threshold. Fidelity describes this schedule-plus-threshold approach.
More frequent checking and trading is not automatically better; weigh any adjustment against costs and taxes. The cited sources describe approaches, not a universally optimal calendar or threshold.
When a fund handles rebalancing
A target-date or lifecycle fund can manage allocation changes and rebalancing within the fund. That delegates those decisions to the fund manager, but you still need to select a fund consistent with your goal and understand its approach. Fund choice does not make the allocation question disappear.
Scope of this guidance
This is general U.S. investor education, not an individualized investment or tax recommendation. No particular target, security, or trading threshold is right for every investor, and past performance does not guarantee future results. Investors outside the United States should use information applicable to their jurisdiction.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallCrashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteQuick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
