Portfolio Comparison
Configure two portfolios and compare their projected growth side by side.
| Asset | Start ($) | Monthly ($) | Rate (%) | |
|---|---|---|---|---|
| Asset | Start ($) | Monthly ($) | Rate (%) | |
|---|---|---|---|---|
Portfolio Value Over Time
What This Comparison Tool Is For
Most investment decisions aren't "should I invest" — they're "which option is better." This tool runs two portfolios through the same growth projection at the same time, so you can directly compare things like an aggressive versus conservative allocation, a higher monthly contribution versus a higher starting amount, or two different asset mixes over the same number of years.
Each portfolio can hold multiple assets with its own start amount, monthly contribution, and return rate, so you can build realistic mixes — for example, 90% S&P 500 and 10% gold against a 70/30 split of the same two assets. The chart above updates instantly as you adjust either side.
Frequently Asked Questions
What's a good example comparison to try?
A common one: a lump-sum starting amount with no further contributions versus a smaller starting amount plus steady monthly contributions (dollar-cost averaging). Over long horizons, the two can end up surprisingly close despite feeling very different to save into.
Can I compare more than two portfolios?
This tool compares exactly two side by side, which keeps the comparison easy to read. For scenarios with more moving parts, like different rates for different years within one portfolio, use the finance simulation calculator instead.
Can I share or embed a comparison I've built?
Yes — use the "Copy link" button to get a URL that reproduces the exact portfolios and timeframe you've set up, or "Embed" to get an iframe snippet for a blog or website.