New money changes the denominator as well as one asset balance. A contribution can reduce a mismatch without eliminating it; reaching an exact target requires recalculating the whole included sleeve.
Define the target and the money it covers
This original fictional investment sleeve starts with MYR70,000 in equities and MYR30,000 in bonds. The total is MYR100,000 and the current weights are 70% and 30%. For the exercise alone, its written target is 60% equities and 40% bonds. Emergency reserves, near-term goal money, property and restricted retirement balances are outside this scope. This is a different household example from the goal-allocation guide, not the next stage of that guide’s MYR50,000 sleeve.
Investor.gov describes rebalancing as restoring an intended allocation after weights drift, including through additional money. It does not endorse this household’s target. Before using the arithmetic elsewhere, confirm the goal, time horizon and acceptable loss still fit the target being considered. A formula can restore a chosen ratio; it cannot establish whether that ratio suits a person or whether the portfolio will avoid losses.
Background source: SEC Investor.gov: Asset Allocation and Diversification (background principles)
Measure drift in percentage points
The starting equity weight is 70%, against a 60% target, so its drift is +10 percentage points. Relative to the target percentage, the excess is 10 ÷ 60 = approximately 16.67%. Those are different descriptions of the same starting position. Calling it “10% above target” without specifying the measure would leave the review rule ambiguous. Write both the target and the unit of comparison on the worksheet.
For this exercise, choose a review trigger of at least 5 percentage points of absolute deviation from either target weight. That is an invented policy for the lesson, not an official threshold or a personal recommendation. The initial 10-point deviation triggers a review. The rule asks for a decision, not an automatic trade: an upcoming contribution or a changed goal might affect the response. Here, all prices stay fixed while the arithmetic is compared.
Add MYR10,000 and rebuild the denominator
Assume MYR10,000 of genuinely new investable money is available and all of it is allocated to bonds. Equity value stays MYR70,000, bonds become MYR40,000 and the included total becomes MYR110,000. The new equity weight is 70,000 ÷ 110,000 = approximately 63.64%; the bond weight is approximately 36.36%. Dividing either balance by the old MYR100,000 would produce percentages that no longer describe the portfolio.
Equity drift is now about +3.64 percentage points, inside this exercise’s chosen review threshold but still above the exact 60% target. Adding MYR10,000 therefore reduces the mismatch without completing an exact rebalance. The worked table puts the stages side by side and gives each row its own total. Buying the bond exposure is still a transaction; using new money means no existing holding was sold at this stage, not that implementation is automatically free.
Compare an internal transfer with a contribution-only solution
At the new MYR110,000 total, exact 60/40 amounts would be MYR66,000 and MYR44,000. Moving MYR4,000 from the MYR70,000 equity balance to the MYR40,000 bond balance reaches those amounts. This is an internal transfer in the model: the sleeve total remains MYR110,000. The example assumes divisible holdings and excludes fees and taxes; real sale proceeds and purchase costs need their own check.
Alternatively, return to the original MYR70,000/MYR30,000 starting point and allow no sales. Solve 70,000 ÷ (100,000 + x) = 0.60. Total new money into bonds is x = MYR16,666.666…, approximately MYR16,666.67 rounded to cents. If MYR10,000 has already been added, about MYR6,666.67 more is needed under the same fixed-price assumptions. The rounded solution is approximately 60/40, not mathematically exact to infinite precision. It is an alternative to the MYR4,000 transfer, not an extra step after it.
| Stage and included total (MYR) | Equities: MYR / weight | Bonds: MYR / weight |
|---|---|---|
| Start; total 100,000 | 70,000 / 70% | 30,000 / 30% |
| Add 10,000 to bonds; total 110,000 | 70,000 / 63.64% | 40,000 / 36.36% |
| Then transfer 4,000; total 110,000 | 66,000 / 60% | 44,000 / 40% |
| Alternative from start: add only 16,666.67; total 116,666.67 | 70,000 / approximately 60% | 46,666.67 / approximately 40% |
Check costs and access before acting on the arithmetic
Fidelity discusses using contributions and considering transaction costs and tax effects when rebalancing. Its US account examples do not establish treatment for a Malaysian household. Here the no-sale solution excludes taxes and fees for calculation only; that assumption is not a statement that a purchase has no tax, dealing charge, spread or conversion cost. If costs consume part of the contribution, recompute using the amount actually invested.
Confirm the proposed money is available after near-term goals and reserves, and match the valuation date and currency across holdings. Do not assume an EPF balance can be withdrawn or redirected. Also check what the bond holding contains: bond funds can lose value and are not cash. Once market prices change, the fixed MYR4,000 and MYR16,666.67 answers no longer automatically apply. Revalue both sides rather than repeating a previous order because the worksheet once balanced.
Background source: Fidelity: Rebalancing your investments (background; US tax examples are not Malaysian rules)
Background source: SEC Investor.gov: Bond Funds and Income Funds (risk background)
Record the decision without inventing tool capabilities
Write down the valuation date, included holdings, current weights, chosen targets, trigger and intended response. After any real contribution, reconcile actual invested amounts and the resulting weights. A transfer between two included holdings is not new saving. An uninvested balance also needs an explicit treatment; do not quietly count it as bonds just because that is where you intend to invest it later.
DividenNote records stocks and related dividend information. It does not automatically assign asset classes or targets, calculate this two-class worksheet or execute a rebalance. Use the separate manual worksheet for those calculations. Its CSV is not an import file, has no account connection and does not sync with DividenNote. Keep the calculation and stock record dated, so a later review can distinguish a contribution, an internal sale and purchase, and a change in market value.
Download the worksheet
Put it into practice
Use DividenNote for stock records and the separate manual CSV for asset-class arithmetic. The CSV is not a DividenNote import; neither the worksheet nor this guide connects accounts, syncs records or executes trades.
Review recorded stocks in DividenNote