Ungraded vs Grade 8.0 Thor #129 (1966): price difference

Thor #129 (1966) value — Ungraded $29 vs Grade 8.0 $198. Grade 8.0 sells for 6.83× Ungraded (+583%). Prices updated August 2026.

GradeSold medianvs Ungraded
Ungraded$29eBay ↗
Grade 6.0$792.72× · +172%eBay ↗
Grade 8.0$1986.83× · +583%eBay ↗

Medians of real sold listings per grade, updated August 2026 how we compute values.

Ungraded vs Grade 8.0
$29$198

Grade 8.0 sells for 6.83× (+583%) the Ungraded price — a $169 difference per comic.

Ungraded vs Grade 6.0
$29$79

Grade 6.0 sells for 2.72× (+172%) the Ungraded price — a $50 difference per comic.

Should you get this comic graded?

Grading runs about $30 per comic all-in. On Thor #129 (1966), the jump from Ungraded to Grade 8.0 is worth $169 (6.83×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.

Run the grading break-even math →
See current eBay listingsSee sold Thor #129 (1966) listings ↗Full Thor #129 (1966) price guide →

Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).

Thor #129 (1966): Ungraded vs Grade 8.0 Price Difference