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Slabline
The standardized risk index for graded collectibles

What’s your Slabline Score?

A real-time risk index for graded card collections. Insurance gaps, concentration exposure, storage vulnerabilities, liquidity, and provenance — quantified in one number. Free to check. Takes under 60 seconds.

How it’s calculated

Free. No signup to see your score. Sample data loaded.

Works with PSA · BGS · SGC · CGC · TAG

Live sample · Aaron Judge collector
782/1000
B
Well protected
Peer position
Top 22% of collectors
30-day trend
+12 points
Score composition · weighted
  • Insurance72
  • Concentration84
  • Storage78
  • Liquidity81
  • Provenance91
Price guides & portfolio trackers

Track values. Show charts. Compare comps. Tell you what your portfolio is worth on the way up.

The Slabline Score™

Quantifies what’s at risk — insurance gaps, single-position concentration, storage exposure, illiquid positions, and provenance gaps — in one comparable number.

See where your collection really stands.

Free up to 25 cards · paid plans from $9.99/mo · See plans