Compare investing regularly in two stocks
A single purchase can make the starting date dominate the story. DCA shows what happens when you keep investing the same amount over time.
Choose two companies
Search by ticker or name. NE or clo finds Cloudflare. Start with Cloudflare and Uber.
Set the same plan
Weekly contributions through today are the default. Choose an amount, change the frequency or date range, and each stock receives the same contributions.
Compare the result
See what you put in, what each investment became worth, and the gain or loss. Change the start date to test the result.
Build progress
Live — follow-up open.
| Theme | Planned | In progress | Complete |
|---|
How the calculation works
The comparison uses historical adjusted closing prices from Yahoo Finance. Adjustments model stock splits and reinvested dividends. Purchases use fractional holdings, with no fees or taxes. This is a historical illustration, not a prediction or investment advice.
Both stocks use the same available trading dates. A purchase scheduled for a weekend or holiday moves to the next common trading day. History starts only when both stocks have data. The last observation date can be earlier than today. Data can be delayed or come from a saved snapshot when the provider is unavailable. Check the displayed date range before interpreting a result.
Regular investing changes how much money is exposed to the market over time. Gain divided by total contributions is a simple return on contributions, not an annualized return. A single-purchase chart and a regular-investing chart answer different questions.
History
First version deployed at 8:50 a.m. Pacific. Regular-investing comparison, company search, and this guide are live. Design and broader verification remain open.