Highlights
- $140.3M in tracked sales, sequentially flat to Q1 2025.
- Documented-provenance items outperformed COA-alone equivalents by 30–60%.
- Heritage's June Sports Signature Auction cleared $25.4M, the strongest June since 2022.
- Kobe Bryant 2009 Finals Game 4 jersey, photo-matched, sold for $1.08M in June.
- The first AI-suspect provenance photograph incident was publicly documented (Heritage, May).
What Q2 2025 actually looked like
The headline number for Q2 2025 — $140.3M tracked, essentially flat to Q1 — masks the most important market structure shift of the year. Items with verifiable, documented chain-of-custody pulled away from otherwise-comparable items relying on COA documentation alone. The spread, which had been 10–15% in 2023 and 20–30% in 2024, widened to a documented 30–60% in Q2 2025.
The shift was not gradual. Three sales in May and June established the new pricing tier:
A 1960 JFK jugate button at Hake's Summer 2025. Two examples, side-by-side, in similar physical condition. One had family-line documentation back to the 1960 campaign (a receipt from a Massachusetts campaign event, signed by the original purchaser). The other had a generic dealer COA. The documented example cleared $4,200; the COA-only example cleared $1,850. A 2.3x spread on otherwise-comparable items.
A Babe Ruth signed baseball at Heritage Sports May 2025. Two JSA-LOA-certified examples. One had documentation tracing the signing to a 1934 event in Cleveland (a verifiable date, location, and witness). The other had only the JSA LOA itself. The documented example cleared $190,000; the LOA-only example cleared $112,000. A 70% premium for the documented chain.
A 1968 Hendrix-Fillmore BG-105 first-print at Heritage Music June 2025. Two examples in similar grade. One came with documented attendance — a Bill Graham Presents stub from the same evening. The other had no event documentation. The documented example cleared $7,800; the comparable cleared $5,200. A 50% premium.
Why the re-pricing happened
The market's documented-provenance premium widened for three reasons that coalesced in the same quarter.
Generative AI made photograph-based provenance suspect. In May 2025, Heritage Auctions publicly disclosed an incident in which a consignor submitted a 1960s celebrity-signed photograph with a 1960s-purporting authentication photograph that AI-detection tools identified as having been generated in 2024. The incident, and Heritage's transparency about it, signaled to the market that photograph-based provenance is no longer self-authenticating.
Estate consignment scrutiny tightened. As more inherited collections enter the market, auction houses are demanding more documented chain-of-custody at consignment intake. Items submitted with "this was in my grandfather's attic" provenance are increasingly held to additional verification standards before being accepted. Items that pass that intake bar then command a premium versus items that bypass formal intake.
The cross-category modern buyer values verification. The buyer cohort under 40 — who is now a meaningful share of tracked-sale demand — has shown a documented preference for items with verifiable third-party chain-of-custody documentation. They are buying signed albums where the signing event is on YouTube; game-worn jerseys with photo-match verification; screen-used props with documented studio provenance. The behavior pattern is consistent across categories.
Numbers we tracked
| Category | Q2 2025 tracked | QoQ change | Median sale |
|---|---|---|---|
| Trading cards | $54.3M | +1% | $27,200 |
| Sports memorabilia | $23.1M | +3% | $43,500 |
| Movie/TV memorabilia | $20.2M | +9% | $54,000 |
| Comics | $17.8M | -3% | $22,100 |
| Music memorabilia | $11.5M | +2% | $30,400 |
| Political/historical | $7.4M | +5% | $33,800 |
| Autographs | $3.8M | -7% | $10,900 |
| Toys | $2.2M | +12% | $8,400 |
What we are watching into Q3 2025
The provenance-documented premium is the dominant Q3 question: will the 30–60% spread hold, widen, or compress? If documentation continues to outperform, expect auction houses to invest more in provenance-research staffing and for the secondary market to bifurcate cleanly. If the spread compresses, that suggests buyers will accept lower-documentation items at smaller discounts and the market remains category-coupled rather than provenance-coupled.
The second story is whether the PSA backlog continues to widen. PSA's standard service turnaround in Q2 was 75 days, up from 60 days in Q1 — still below the 90-day threshold but moving toward it.
Methodology note
Tracked sales above the Field Index threshold ($5,000 for cards, $10,000 for memorabilia, $25,000 for documents and props) are sourced from public auction-house catalogs, trade-press reporting, and grading-service population data.