Research, with the
evidence in view.
Studies powered by Nomad OS. Explore the findings, the methods behind them, and the limits of what the evidence can tell us.
SPORTS CARD MARKETS
The Price
of Greatness
Established icons, emerging stars and the limits of a consolidation story
A follow-up study of 18 selected PSA 10 cards across six players, using two years of CardHedge-reported sales. Brady and LeBron lead their selected counterparts, while Yamal’s stronger appreciation reverses the combined result. The report examines selective relative strength and the limits of interpreting price changes as market consolidation.
THE REPORT - Study population
- 18 cards · 6 players
- Reported grade
- PSA 10
- Historical coverage
- Sep 14, 2024 – Sep 13, 2026
This is a retrospective, observational study of deliberately selected cards. Relative price changes do not establish a market-wide shift in capital or a causal effect of sporting events. Methods, sample revisions, endpoint sensitivities and limitations are included in the report.
SPORTS CARD MARKETS
The Price
of the Grade
A Nomad OS Study of Raw, PSA 9, and PSA 10 Card Prices
A year of CardHedge-reported sales across thirty selected player markets. Nomad OS measured changes in Raw, PSA 9 and PSA 10 prices and the dollar gaps between them; the study explores how those patterns differed across players, alongside grading and sporting events.
Methods and evidence
THE REPORT - Study population
- 30 selected players
- Price categories
- Raw · PSA 9 · PSA 10
- Observation period
- Sep 7, 2025 – Sep 6, 2026
This is retrospective, observational research. The selected players do not represent the entire market, and price gaps are not grading profits. The report explains its source data, analytical choices, disclosures, and remaining uncertainties.
ABOUT NOMAD
The work behind the research.
Nomad Software Group develops Nomad OS, the proprietary software that powered this study’s original matched-card analysis and preserved its supporting calculation records.
Our research presents findings alongside their methods and limitations, so readers can assess what the evidence supports.
Research questions and correspondence
matthew@nomadsoftwaregroup.com