Ungraded vs Grade 8.0 Invincible Compendium [Paperback] #3 (2018): price difference
Invincible Compendium [Paperback] #3 (2018) value — Ungraded $39 vs Grade 8.0 $31. Ungraded sells for 1.26× Grade 8.0 (+26%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Ungraded sells for 1.26× (+26%) the Grade 8.0 price — a $8 difference per comic.
Ungraded sells for 1.5× (+50%) the Grade 6.0 price — a $13 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Invincible Compendium [Paperback] #3 (2018), the jump from Grade 8.0 to Ungraded is worth $8 (1.26×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).