About OpenFactsheet
Everyone deserves a second opinion before investing
Why it exists
Investment marketing is written to sell. It is usually accurate, and often selective: the period that started after a bad year, the figure that flatters this particular product, the comparison that is easy to beat. Professional investors have analysts and data tools to look past that. Most people don't.
OpenFactsheet gives everyone the same standard analysis. It takes an investment's monthly returns, applies one published method, and reports the growth, the losses and the risks with an honest label of how far each figure can be trusted. The same file always gives the same result, whoever runs it.
The mission is simple: make independent, consistent analysis of an investment's track record available to everyone, not only to professionals.
The argument
The seller writes the summary
The people who sell an investment decide what its factsheet shows. EU supervisors list factsheets as marketing communications.E1 That is information asymmetry: one side has the full record and the analysts, the other has the brochure.
Incentives can pull the other way
Regulators in the US, UK and EU have acknowledged that commissions and sales incentives can conflict with investors' interests.E21 We question incentives and practices, never people.
A fee should be earned
After costs, the average actively managed dollar must earn less than the market.E5 So an investment that charges more than a low-cost alternative carries the burden of proof: after-fee, risk-adjusted evidence that the extra cost bought something.
What OpenFactsheet is not
It gives you evidence to ask better questions. The decision, and the advice you seek, stay with you.
Not an adviser
It doesn't know your goals or circumstances and doesn't tell you what to do.
Not a rating agency
It never scores, ranks or grades investments.
Not a buy or sell signal
It describes what happened in the past, not what will happen next.
Not a certificate
A report says nothing about whether a product is legitimate or well run.
Not a check on the data itself
It analyzes the returns you supply and can't confirm they are complete or correct.

Founder
Prof. Andrés A. Bagnasco
Prof. Andrés A. Bagnasco, of UCU Business School, created OpenFactsheet and wrote the openfactsheet methodology and library.
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- Not affiliated with any fund manager, distributor or index provider.
- No advertising, no sponsored placements, no paid listings.
- No data collection: your file never leaves your device.
- Open source, so anyone can check how every number is computed.
Open source
Every number comes from the openfactsheet Python library, released under the Apache-2.0 license. The website runs that same library inside your browser, so the free tool and the professional library always agree.
The source code repository is in private beta; a public release is coming soon. Developers and investment professionals can read more on the Python library page.
See what a second opinion looks like.
Try the free example in seconds, or analyze your own file. No account, no upload.