DC · Bronze Age · 1970
Detective Comics #400
DC · 1970
Noted for: Man-Bat
KEY ISSUERecorded sales · CGC 5 median
$275
2 CGC 5 sales of 6 recorded on eBay · newest Sep 22, 2026
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What is Detective Comics #400 worth?
The Detective Comics #400 is a DC 1970 graded comic. Based on 6 verified eBay sold listings in the stored historical sample, graded examples sold for $275 to $1,050. CGC 5 examples are the most actively traded grade in this sample, with a recorded median around $275.
Before you buy
Verify the issue and printing, check the grader certification, review restoration notes, and compare recorded sales and current asking prices in the same grade.
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Listed now on eBay
Search current eBay listingsLast recorded sales
Historical graded comic sales on eBay. Newest recorded sale: 2026-09-22. These records do not reflect current asking prices.
| Date | Grade | Price |
|---|---|---|
| 2026-09-22 | CGC 8 | $799 |
| 2026-09-16 | CGC 5 | $275 |
| 2026-09-08 | CGC 9 | $1,050 |
| 2026-08-14 | CGC 6.5 | $449 |
| 2026-08-06 | CGC 8.5 | $700 |
| 2026-08-04 | CGC 5 | $275 |
The Detective Comics #400 in context
Why collectors care
The first appearance of Man-Bat, cover-dated June 1970, in the landmark 400th issue of Detective Comics. The Neal Adams cover is among the most admired of the era, and the anniversary numbering adds collector appeal.
How to identify it
Detective Comics #400, June 1970. The Adams cover showing Man-Bat looming over Batman is the quickest visual confirmation.
Common mistakes
Facsimile editions exist and reproduce the Adams cover faithfully. Confirm the 1970 printing in the indicia.
Grade considerations
The dark, atmospheric cover shows spine ticks and corner wear plainly. High-grade copies are scarce and carry a steep premium.
Recorded sales by grade
6 recorded eBay sales, grouped by grade. Historical prices, not current asking prices.
- Source
- eBay sold listings
- Sample
- 6 sales
- Record
- Historical sale sample
- Newest recorded sale
- Sep 22, 2026
| Grade | Sales | Median | Range |
|---|---|---|---|
| CGC 9 | 1 | $1,050 | One sale |
| CGC 8 | 1 | $799 | One sale |
| CGC 8.5 | 1 | $700 | One sale |
| CGC 6.5 | 1 | $449 | One sale |
| CGC 5 | 2 | $275 | $275 |
Recorded sales by grade · how this summary is built+
Newest recorded sale: 2026-09-22. This summary describes stored history.
Inclusion
All 6 recorded eBay sold (completed) listings in this historical sample, grouped by grader and grade. Asking prices and active listings are never counted.
Outlier handling
Within any grade that has four or more sales, a price below one-third of, or above three times, the within-grade median is set aside before the median is taken. No sales were set aside on this rule for this item.
A comic sale that sold for under a third of the median of this issue's lower-grade sales is also set aside as a probable reprint, facsimile, later printing or restored copy, since a higher grade of the same book should not sell for less. No sales were set aside on this rule for this item.
| Grade | Sales | Included | Set aside |
|---|---|---|---|
| CGC 5 | 2 | 2 | 0 |
| CGC 8 | 1 | 1 | 0 |
| CGC 9 | 1 | 1 | 0 |
| CGC 6.5 | 1 | 1 | 0 |
| CGC 8.5 | 1 | 1 | 0 |
Shipping and fees
Figures are the sale prices as recorded by the marketplace. They are not adjusted for shipping, taxes, or seller fees, so treat them as sale-price reference points, not net-to-seller or all-in buyer costs.
Provenance
Every sale in this summary was a completed eBay sale, listed by date, grade and price in the sales table lower on this page. Individual listings are not linked. Methodology version 2026.4. Read the full methodology.
Detective Comics #400 value FAQ
What is Detective Comics #400 worth?+
Based on 6 verified eBay sold listings in the stored historical sample, graded examples sold for $275 to $1,050.
What grade sells most often for Detective Comics #400?+
CGC 5 is the most actively traded grade in the recorded sample, with 2 sales and a recent median around $275.
What is the highest median grade for Detective Comics #400?+
CGC 5 has the highest median in the recorded sample at about $275. Treat this as a sold-comp snapshot, not a guaranteed sale price.
Is Detective Comics #400 worth grading?+
For this comic, compare the likely raw value, grading fees, shipping, and the median for the grade you realistically expect. Grading usually makes sense only when the expected graded value clears those costs.
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