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Portfolio calculator

Build a simple investment portfolio, choose a risk profile and see how it could grow over your time horizon with different rebalancing choices.

How it works Report a problem

📊 Portfolio Builder Pro

Multi-asset portfolio analysis with allocation, projected returns & risk-adjusted scoring

Portfolio Settings
Asset Allocation
Asset Name Amount ($) Exp. Return % Asset Type
Projected Portfolio Value
$0
After 10 years at blended return
Total Invested
$0
Total Gains
$0
Blended Return
0%
Risk Score
—
Asset Breakdown
AssetValueAllocationProjected Value
Portfolio Intelligence

A portfolio is more than a list of holdings; it is the mix between them that decides risk. This calculator totals your investments and shows the percentage each asset or class takes, so the portfolio you actually have can be compared with the one you intended.

How to use this calculator

  • Enter each holding: its name or asset class and its current value.
  • Press calculate to see the total value and each holding's share.
  • Compare the shares with your target allocation.

Drift is normal, rebalancing is the fix

Assets grow at different speeds, so a balanced mix drifts toward whatever won recently — quietly raising risk. Checking the shares once or twice a year, and topping up the laggards with new money, restores the intended mix without selling anything.

Frequently asked questions

What is a sensible allocation?
It depends on age, goals and how much decline you can sit through without selling. A common starting idea is holding roughly your age in safer assets, adjusted for your own situation.
Should every holding be equal?
No. Allocation is by design, not by equality. Core holdings are usually large; speculative ones, if any, should be small enough to lose without derailing the plan.
How often should I check my portfolio's mix?
Once or twice a year is enough for most long-term investors. Checking daily invites reactions; never checking invites drift.