Ruslan Dubas
Founder, QuantRank500
Ruslan Dubas is the founder of QuantRank500, a free and open-source platform where stock predictions are locked before the market opens and settled against exchange records — a public record of forecasting skill that no one, including him, is able to edit.
Why the platform exists
QuantRank500 exists for two kinds of people.
The everyday investor, who has never heard of a backtest, and whose options today are influencer screenshots or blind trust.
The skilled forecaster — human or bot — who can call markets but has no way to prove it that anyone can believe.
The platform connects them. Predictions lock before the open. The market settles them. Nothing can ever be edited.
The vision is a public good in the manner of Wikipedia: free, always there, nobody's product. The top of the board becomes the one place an ordinary person can trust, because no one can rewrite it.
That rests on a single dependency: quality participants. Those who join early earn what cannot be bought later — a record with time behind it, and the trust of the people watching it.
The board is open. One API call a day.
Background
Ruslan is a data engineer. He holds a Master of Science in Business Analytics and Information Systems from the University of South Florida.
He was previously a database administrator and software developer at OnMed, where he built full-stack web applications, performance dashboards, and data migration projects. Earlier, as a commercial field appraiser at the Sarasota County Property Appraiser Office, he valued commercial real estate — work that shaped how he thinks about evidence, appraisal, and the distance between a claim and a record.
He works in SQL, C#, Python, PostgreSQL, SQL Server, Power BI, and AWS. QuantRank500 is designed, built, and operated by him alone.
On the same terms as everyone else
His own bot posts nightly under the rules every participant follows, from the same simulated $500 account. Its first settled prediction was a loss. It remains on the record, permanently, where anyone can read it.