Turn portfolio drift back into a decision.
Winners grow, laggards shrink, and your careful allocation quietly drifts into something you never chose. Tradune compares each holding with the target weight you set, flags the ones outside your tolerance band, and sizes the trade that would close the gap.
Drift is silent — until it’s a problem
A position that ran from 5% to 15% is now steering your portfolio, whether you meant it to or not. Rebalancing is how you keep your risk where you decided it should be — but doing the math by hand is tedious enough that most people just don’t.
Define your target allocation
Set the weight you want for each holding, and how far it may wander before it counts as off target. Tradune measures how far each one has drifted so the gaps are explicit, not a vague feeling that “tech is a bit heavy now.”
Get the trade sized in dollars
For every position outside its band, Tradune shows whether getting back to target means buying or selling, the dollar amount, and roughly how many shares that is at the latest price — not just “trim your winners.”
Rebalance on your terms
Rebalancing is a discipline, not a mandate. Tradune shows you the plan; when and whether to act — and how taxes factor in — stays your call.
How does Tradune calculate a rebalancing trade?
Every number on the page comes from the positions and cash you have recorded. For the reasoning behind calendar reviews and drift bands, see the portfolio rebalancing guide.
- 1
A target and a band per holding
Each target is a single symbol with a weight between 0% and 100% and a tolerance band in percentage points (5 by default). Whatever your targets don’t add up to is your implied cash sleeve: targets totalling 90% leave 10% for cash.
- 2
Weights against the right total
When you record deposits and your cash balance is not negative, weights are a share of net worth — positions plus cash. If you only record trades, or recorded buys exceed recorded deposits, weights are measured against invested positions instead, and no trade amounts are shown, because sizing a buy from a cash figure that is missing or wrong would give you the wrong number.
- 3
Drift, in percentage points
Drift is current weight minus target. A holding is flagged only when the size of its drift is larger than its band.
- 4
A dollar trade for each flagged holding
The trade is target value minus current value: positive means buy, negative means sell. The share count beside it is the dollar amount divided by the latest price, rounded to whole shares, so treat it as approximate.
- 5
Two extra views
Holdings you have not set a target for are listed but never steered. A no-sell mode spreads new cash across underweight targets in proportion to how far each is below target, rounds down to whole shares and shows the leftover. A risk-contribution table weights each targeted holding’s value by its annualized volatility from the last 90 daily closes, which shows when a holding’s share of risk is much larger than its share of money.
What does a rebalancing plan look like?
A hypothetical $50,000 account with recorded cash, three targets and the default 5-point band.
| Holding | Current | Target | Drift | Plan |
|---|---|---|---|---|
| Stock A | $26,000 (52%) | 40% = $20,000 | +12 pts | Sell $6,000 |
| Stock B | $12,000 (24%) | 30% = $15,000 | −6 pts | Buy $3,000 |
| Fund C | $9,000 (18%) | 20% = $10,000 | −2 pts | Within band, no trade |
| Cash | $3,000 (6%) | Implied 10% | — | — |
Stock A and Stock B are outside their 5-point bands, so each gets a dollar trade; Fund C is 2 points under and is left alone. Doing both trades would leave cash at $6,000, or 12%.
In no-sell mode with $5,000 of new money, the total becomes $55,000. Stock B is $4,500 below its new target ($16,500) and Fund C $2,000 below its ($11,000), a combined gap of $6,500, so the $5,000 is split $3,461.54 to B and $1,538.46 to C before rounding to whole shares. Stock A, already overweight, gets nothing.
In a taxable account, the sell side can realize a gain. Check that first with the tax-loss harvesting and realized-gains tools.
What you get
- Target weight and tolerance band per holding
- Drift measured in percentage points against your targets
- Buy or sell sized in dollars, with an approximate share count
- No-sell mode for putting new cash to work
- Risk contribution per position from 90-day volatility
- You decide when to act — nothing auto-trades
Frequently asked
What is rebalancing?
Rebalancing means trading back toward your intended allocation after prices have pushed it off target. It’s how you keep a position from silently growing into an outsized share of your risk.
Does Tradune place trades for me?
No. Tradune generates the suggested trade plan; you execute it yourself at your broker. Nothing auto-trades, and Tradune never needs brokerage access.
Can I set targets for a sector or a group of holdings?
Not today. Targets are set per holding. To steer a sector, set targets on the individual positions in it.
Why are no trade amounts shown on my plan?
Because the plan cannot see your cash. If you record trades but no deposits, or your recorded buys exceed your recorded deposits, Tradune still shows weights and drift against your invested positions but leaves out buy and sell amounts. Recording your deposits restores them.
How often should I rebalance?
There’s no single right answer — some rebalance on a schedule, some when drift crosses a threshold. Tradune shows you the drift so the decision is informed; the timing is yours.
Does it consider taxes?
No. The plan is sized on weights alone. Rebalancing in a taxable account can realize gains, so pair it with the tax-loss and realized-gains tools before you act.
Is this advice?
No. It’s a planning tool that reflects targets you set — not a recommendation to buy or sell any specific security.
Related
Try it on your own portfolio
Free for everyone right now · no card · nothing to buy. Tradune shows you information to do your own research, never advice.
Start freeEducational analytics — not investment advice.