Action Comics #340 (1966) — Comic Book Value
Action ComicsWhat Action Comics #340 (1966) is worth — ungraded and CGC graded (6.0, 8.0).
Action Comics #340 (1966) value — Ungraded $50 · Grade 6.0 $180 · Grade 8.0 $359. Prices updated July 2026.
Series · Action Comics
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Value by grade
$50
Ungraded
3.6×
$180
Grade 6.0
7.2×
$359
Grade 8.0
Real sold prices per grade — the Grade 8.0 premium on this card is 7.2× raw.
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Item details
- Series
- Action Comics
Action Comics #340 (1966) comic value
An ungraded copy of Action Comics #340 (1966) averages around $50. A CGC 6.0 runs about $180, and a CGC 8.0 commands $359.
What drives the price
Grade is everything in comics — spine ticks, page color, and restoration decide the number, and the jump from raw to high grade can be 10×+. Key issues (first appearances, origins, deaths) carry the biggest premiums, and early printings beat reprints.
Price guide
Sold values by grade vs. what sellers ask today
| Condition | Value | Based on |
|---|---|---|
| Ungraded | $50 | eBay sold comps |
| Grade 6.0 | $180 | eBay sold comps |
| Grade 8.0 | $359 | eBay sold comps |
Frequently asked questions
- What is the starting price for Action Comics #340?
- An ungraded copy of Action Comics #340 is currently listed starting at $33.
- How much is a Grade 8.0 copy worth?
- A Grade 8.0 copy of Action Comics #340 can be found for $390.
- Is there a price difference between ungraded and graded versions?
- Yes, the market shows a substantial difference, with a Grade 8.0 copy priced at $390 compared to $33 ungraded.