Portfolio Rebalancer

1. Enter the current market value of your stock holdings.
2. Enter the current market value of your bond holdings.
3. Enter cash and cash-equivalent balances counted in the portfolio.
4. Set your target stock percentage.
5. Set your target bond percentage (cash target is the remainder to 100%).

The tool sums stocks, bonds, and cash into total portfolio value, converts each sleeve to a current percent, and compares those percents with your targets. Drift score is the largest absolute percentage-point gap across sleeves. For each sleeve it computes the dollar value implied by the target percent and labels buy, sell, or hold based on whether you are under, over, or roughly on target.

Total = Stocks + Bonds + Cash
Current % = Sleeve value ÷ Total
Cash target % = 100 − Stock target − Bond target
Drift = max(|current% − target%| across sleeves)
Trade ≈ (Target% × Total) − Current sleeve value

Suppose stocks are $65,000, bonds $18,000, and cash $7,000 (total $90,000) with targets of 60% stocks / 30% bonds / 10% cash. Current weights are about 72% / 20% / 8%, so stocks are heavy and bonds light. Drift is led by the stock overweight. The action list typically suggests trimming stocks and adding bonds (and possibly topping up cash) so each sleeve’s dollars match the target weights on the same total. If you rebalance inside a taxable brokerage, selling winners can realize capital gains; in a tax-advantaged account the same trades are often simpler. Threshold investors might wait until drift exceeds a band (for example five percentage points); calendar investors might run this check every six or twelve months regardless.

Total portfolio

Sum of the three sleeve values you entered — the base for all percentage math.

Drift score

Largest sleeve gap versus target in percentage points. Higher drift means you are further from policy.

Actions

Buy/sell/hold style guidance per sleeve to move toward targets on the current total value.

Rebalancing note

Short commentary on whether drift looks mild or elevated under your inputs.

• Rebalancing in taxable accounts without checking capital-gains impact.
• Setting stock and bond targets that already exceed 100% combined.
• Ignoring new contributions — sometimes you can rebalance by directing new cash instead of selling.
• Chasing daily noise with tiny threshold bands that generate excess trading.
• Forgetting that target policy should match time horizon and risk tolerance, not last year’s winner.

Three sleeves only (stocks, bonds, cash). Cash target is residual. No transaction costs, bid-ask spreads, fund minimums, or tax lots. Drift ignores other assets (REITs, crypto, alternatives) unless you fold them into a sleeve. Actions assume you rebalance to targets on the current total without adding net new cash in the trade step.

• SEC Investor.gov — Asset allocation
• FINRA — Asset allocation and diversification
• AlgoFinanceLab — Portfolio management guides

Dig deeper with our portfolio management strategies guide, or try Position Size Calculator and Robo Advisor Fee Comparison.

Estimates only — not financial, lending, or investment advice. Decisions should be based on your full situation and professional guidance where appropriate.