Heritage's Summer Sports Card Catalog closed out July 10–11 and did most of this week's heavy lifting — and then the auction house dropped a midyear report with a comics number that made everyone's coffee go cold. Here are the three signals that mattered.
1 — 1952 Topps Mickey Mantle #311 PSA NM-MT 8 — $1,866,600
The card that built the post-war hobby did it again. A PSA NM-MT 8 example of the 1952 Topps Mantle closed at $1,866,600 on July 11, 2026 in Heritage Auctions' Summer Sports Card Catalog (sale 50086), per Heritage's post-sale listing. Why that number? Condition census. Of the roughly 2,100 copies PSA has graded, only fourteen sit above this one — and the legend of the card (Topps famously dumped unsold '52 high-number cases into the Atlantic) keeps demand structurally ahead of supply. For context, another PSA 8 brought a reported $1.83 million at Goldin's Vintage Elite just three weeks earlier (Auction Report), so the tier is trading in a tight, confident band — well off the $2.1M+ peak signals of 2021, but consistent.
AOM signal: Two PSA 8 '52 Mantles clearing $1.8M+ within a month isn't a fluke — it's a price floor announcing itself.
2 — Batman #1 + Superman #1 — $13,000,000 private transaction (disclosed this week)
Not an auction — a disclosure, and a monster one. In its record $1.41 billion midyear report published July 10, Heritage revealed a $13 million private transaction involving the highest-graded known copy of Batman #1 (1940) and the second-highest-graded copy of Superman #1 (1939), as reported by ARTnews. To be clear on the signal quality: the deal closed privately earlier in 2026 and was made public this week, so treat it as a disclosed benchmark, not a live auction comp. Still — when the two most important Golden Age keys move together for eight figures, every high-grade Golden Age book on the census gets re-anchored.
AOM signal: Private eight-figure comics deals surfacing in public reports means top-of-census Golden Age keys are liquid at levels the auction record doesn't fully show.
3 — 1986 Fleer Michael Jordan Rookie #57 PSA Gem Mint 10 — $347,700
The hobby's benchmark modern-vintage rookie card printed a fresh public number: $347,700 on July 10, 2026, per sales tracker Card Ladder, matching the PSA 10 example featured in Heritage's Summer Sports Card Catalog (lot listing). With a PSA 10 population around 334, this card is the most liquid six-figure asset in sports collecting — Card Ladder shows the grade trading roughly +1.8% over the last three months, with recent signals ranging from the low $340Ks to the high $390Ks. Not explosive. Steady. Which, at this tier, is the story.
AOM signal: The Fleer Jordan PSA 10 is behaving like a blue chip — low drama, high liquidity, and a tight recent trading range in the mid-$300Ks.
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Signal, not an appraisal. Figures reported by Heritage Auctions, ARTnews, Card Ladder, and Auction Report; verify live before buying or selling.
