The most expensive Joker comic is Batman #1 (Spring 1940), the character's first appearance created by Bill Finger, Bob Kane, and Jerry Robinson: a CGC 9.4 copy sold for $2,220,000 at Heritage Auctions in January 2021. That is a grail beyond most collectors' reach — but several historically significant Joker keys remain accessible on eBay for a few dozen euros.
The Joker debuted in Batman #1 (Spring 1940) as a cold-blooded serial killer, before being softened into a harmless prankster during the 1950s and '60s under the influence of the Comics Code. His return to lethal form — engineered by Denny O'Neil and Neal Adams in Batman #251 (1973) — defined the character the world knows today. Film adaptations then amplified his myth: Heath Ledger in The Dark Knight (2008, approximately $1.01 billion worldwide) and Joaquin Phoenix in Joker (2019, approximately $1.07 billion worldwide) made him one of the most recognised villains in popular culture.
This guide sticks to the verifiable: eBay medians from our estimator (eBay.fr + eBay.com, June 2026) and records documented by Heritage Auctions, ComicLink, and specialist press. The "fewer than 15 listings" rule applies throughout — below that threshold, no median is cited. The eBay median for Batman #1 is deliberately excluded: the 100 active listings are dominated by modern facsimiles and reprints, not the 1940 original (a six-figure grail in any grade).
Joker key issue overview (real market data, June 2026)
Two absolute grails (Batman #1 and Detective Comics #168) are beyond everyday market reach. Below them, several Bronze Age keys offer a remarkable importance-to-price ratio.
| Issue | Significance | eBay (all grades) | Documented record |
|---|---|---|---|
| Batman #1 (Spring 1940) | 1st appearance of the Joker and Catwoman | Dominated by reprints — not usable | $2,220,000 (CGC 9.4, Heritage Jan. 2021) |
| Detective Comics #168 (Feb. 1951) | Joker's origin (Red Hood) — first telling | 4 listings — signal too thin | $324,000 (CGC 9.4, Heritage Nov. 2022) |
| Batman #251 (Sept. 1973) | Joker's return as a killer — O'Neil & Adams, iconic cover | Median €9 · 65 listings | $38,000 (CGC 9.8, ComicLink June 2024) |
| Detective Comics #475 (Feb. 1978) | "The Laughing Fish" — Englehart & Marshall Rogers | Median €84 · 28 listings | Not publicly documented |
| Detective Comics #476 (Mar.–Apr. 1978) | Conclusion of "The Laughing Fish" | Median €46 · 20 listings | Not publicly documented |
| Batman #429 (Jan. 1989) | Conclusion of "A Death in the Family" — Jason Todd's death | Median €28 · 32 listings | Not publicly documented |
Record sources: Heritage Auctions, ComicLink, GoCollect, Bleeding Cool.
Batman #251 (1973): the Joker restored, available for €9
Published in September 1973, Batman #251 contains "The Joker's Five-Way Revenge!", written by Denny O'Neil and drawn by Neal Adams. After years of absence — editor Julius Schwartz had kept the character off the page — the Joker returns in his most dangerous incarnation: methodically hunting and killing former members of his own gang. The issue is listed among Overstreet's Top 25 Bronze Age Comics. Neal Adams's cover — the Joker looming over a corpse against a red background — is one of the most reproduced images in Batman history. A CGC 9.8 copy realised $38,000 at ComicLink in June 2024. Yet our eBay estimator returns a median of €9 across 65 listings — a robust, reliable signal for the open market. The gap between a €9 reading copy and a $38,000 slabbed 9.8 illustrates precisely how much CGC grading can amplify value on a landmark issue.
Detective Comics #475–476 (1978): the Englehart/Rogers run
Detective Comics #475 (February 1978) and #476 (March–April 1978) form the two-part story "The Laughing Fish" / "Sign of the Joker", written by Steve Englehart and drawn by Marshall Rogers. In it, the Joker poisons Gotham's waters so that every fish bears his grin, then demands copyright royalties — a criminal absurdity that perfectly captures his twisted logic. The Englehart/Rogers run is widely cited as one of the most influential periods in Detective Comics history and directly inspired Tim Burton's 1989 Batman film with Jack Nicholson. Our estimator returns a median of €84 across 28 listings for #475 and €46 across 20 listings for #476 — figures that reflect their growing reputation among Bronze Age collectors.
Batman #429 (1989): the death of Jason Todd
Batman #429 (January 1989) is the fourth and final chapter of "A Death in the Family" (script by Jim Starlin, art by Jim Aparo). It concludes one of the most momentous events in DC history: the Joker beats Jason Todd — the second Robin — to death with a crowbar, a fate readers voted for by phone. Our estimator returns a median of €28 across 32 listings. The three earlier chapters (#426, #427, #428) each count between 11 and 16 active eBay listings — a volume too thin to cite their medians with confidence; #429 is the only chapter of the arc with a reliable signal.
The two grails: Batman #1 and Detective Comics #168
Batman #1 (Spring 1940) — scripted by Bill Finger, drawn by Bob Kane and Jerry Robinson — is simultaneously the first appearance of the Joker and of Catwoman. It is the most expensive DC comic after Action Comics #1: a CGC 9.4 copy sold for $2,220,000 at Heritage Auctions in January 2021, the only copy ever certified at that grade. The eBay median (around €7 on 100 listings) does not reflect this issue: it is entirely distorted by modern facsimiles, reprints, and commemorative editions. Detective Comics #168 (February 1951) tells the Joker's origin for the first time — before his accident, the future clown was a small-time criminal operating as the Red Hood. A CGC 9.4 sold for $324,000 at Heritage Auctions in November 2022; only 4 active eBay listings exist, far too few for a reliable median.
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