Kon Knueppel 1/1 Topps Chrome Superfractor Sells

2025-26 Topps Chrome Rookie Autographs Superfractor Kon Knueppel Sells for $396,500

On March 15, 2026, Goldin closed a notable ultra-modern basketball sale: a 2025-26 Topps Chrome Rookie Autographs Superfractor #TCAR-KK Kon Knueppel, serial-numbered 1/1, sold for $396,500. The card is graded PSA NM 7 with a PSA/DNA GEM MT 10 autograph.

For a prospect still writing his story, this result gives collectors a clear data point for the very top of the Kon Knueppel market.

The Card: What Exactly Sold?

Let’s break the card down in hobby terms:

• Year/Set: 2025-26 Topps Chrome Basketball
• Subset: Rookie Autographs
• Player: Kon Knueppel
• Card number: #TCAR-KK
• Parallel: Superfractor (the signature 1/1 gold spiral pattern in Topps Chrome)
• Serial number: 1/1 (one-of-one)
• Rookie status: Rookie autograph and key rookie issue
• Autograph: On-card signed (not a sticker), authenticated and graded
• Grading:
  • Card: PSA NM 7
  • Autograph: PSA/DNA GEM MT 10

In modern Topps Chrome releases, Superfractors are the pinnacle parallel: there is only one copy of each card. When that 1/1 also carries an on-card rookie autograph, you are looking at what many collectors would call the “true chase” for that player within the Chrome line.

Even though the technical card grade is a PSA 7 (Near Mint), the autograph receiving a PSA/DNA GEM MT 10 means the signature itself is clean, bold, and free of noticeable flaws. For many player-focused collectors, the autograph grade matters as much as – or more than – the surface/corner centering grade on a thicker, heavily handled signed card.

Where This Card Sits in the Kon Knueppel Hierarchy

Within 2025-26 Topps Chrome, Kon Knueppel’s key cards can be grouped roughly like this:

1. Top-tier chase:

   • Rookie Autographs Superfractor 1/1 (this card)
   • Any other confirmed 1/1 rookie autograph variations, if they exist

2. Premium low-numbered autos:

   • Rookie Autographs Gold /50, Orange /25, Red /5, etc.

3. Non-auto color rookies:

   • Superfractor 1/1 base rookie (if separate from the auto)
   • Gold, Orange, Red, and other color parallels of the base rookie

Because Superfractors are literally one-of-one, there are no direct “comps” (comparable sales) for this exact card in another copy. Instead, collectors look sideways at:

• Other Knueppel rookie autos from this set in lower parallels.
• Superfractor autos of similarly regarded rookies from adjacent draft classes.
• Early high-end rookie patch autos (RPAs) or logoman-style 1/1s from other brands, where available.

Market Context: Reading the $396,500 Result

This Kon Knueppel Superfractor closed at $396,500 at Goldin on March 15, 2026.

Because this is a 1/1 with no identical twin to sell before or after it, the most practical way to understand the price is relative positioning:

• Within the Knueppel market:

  • Non-1/1 rookie autographs in this release typically trade in the much lower brackets, depending on color, serial number, and grade.
  • Serial-numbered color autos (Gold, Orange, Red) usually sit multiple tiers below a true 1/1 Superfractor. This sale effectively establishes the absolute ceiling for 2025-26 Topps Chrome Knueppel autos so far.

• Within the broader ultra-modern market:

  • Topps Chrome and similar chromium brands (like Bowman Chrome in baseball) have long treated Superfractors as the flagship “grail” parallel. For newer collectors, “grail” is a shorthand for a card many player collectors would most like to own if money and availability were no object.
  • The price puts this card into a category typically reserved for the most chased rookie 1/1s in a class, which says more about how the market currently views Knueppel’s upside than it does about any specific stat line.

Because this is a fresh 2025-26 issue, there isn’t a deep historical stack of comparable Knueppel Chrome Superfractor sales to lean on. Instead, the sale functions as an initial benchmark that other high-end Knueppel pieces may be measured against.

Why Collectors Care About This Card

Several elements combine to make this a centerpiece card:

1. Rookie autograph status
   In modern basketball, the combination of a player’s first-year card and an on-card autograph is one of the main collecting targets. For many collectors, a key rookie autograph feels more personal and significant than a non-auto parallel.

2. Superfractor parallel
   Superfractors are synonymous with scarcity in Topps Chrome products. The hobby understands, almost by shorthand, that a Superfractor is the top of the parallel ladder: once it’s gone, that’s it.

3. One-of-one scarcity
   "1/1" (one-of-one) means there is only a single copy of this exact card. Unlike vintage sets where scarcity is driven by survival and condition, here the rarity is built into the print run from day one.

4. PSA grading plus PSA/DNA autograph grade
   PSA is a leading third-party grading company. Their label here does two jobs:

   • Confirms the card and its condition (PSA 7).
   • Confirms and grades the autograph separately (PSA/DNA 10 GEM MT).
     For high-end autographed cards, a 10-grade signature is often viewed as a key selling point.

5. Ultra-modern era dynamics
   This card sits firmly in the ultra-modern era (roughly mid-2010s to today), where:

   • Print technology allows for bold color and complex refractor patterns.
   • Short-printed parallels and on-card autographs create a layered chase structure.
   • Player performance, media attention, and social buzz can all move interest in a relatively short time.

Recent Sales and Price Context

With a one-of-one Superfractor rookie autograph, the exact card has no direct prior public sales to chart in a neat line. Instead, collectors will often:

• Compare the result to:
  • Other Knueppel rookie autos and color parallels.
  • Top 1/1 rookie autos of nearby classes with similar prospect profiles.
• Watch how the rest of Knueppel’s market (especially lower-tier rookies) reacts in the weeks after a headline auction.

Publicly visible sales data on closely related Knueppel cards in 2025-26 Topps Chrome is still developing, as this is a young release and an emerging player. What this Goldin result does provide is an early anchor: a confirmed, high-end transaction for the card many would consider the top of his Chrome autograph ladder.

Factors That Could Influence Collector Interest

Without leaning into speculation, there are a few broad themes that often shape the trajectory of cards like this over time:

• On-court performance and role
  Sustained production, awards, and playoff relevance tend to support long-term collector interest. For prospects, consistency over multiple seasons usually matters more than any one hot streak.

• Hobby narrative
  Sometimes a player becomes “the” chase of a particular year’s product. When that happens, their top 1/1 cards can become shorthand for the entire release.

• Set reputation
  If 2025-26 Topps Chrome becomes remembered as a strong rookie class or a particularly clean, well-designed release, that can benefit its key cards.

Because this is still early in Knueppel’s professional arc, hobby conversation may shift as more data comes in, both on the court and at the auction block.

Takeaways for Collectors and Small Sellers

For collectors who are newer to this segment of the hobby, here are a few practical observations drawn from this sale:

1. Top-of-market sales set, rather than follow, the comps
   With a unique 1/1, a single strong auction can become the reference point for future discussions. It doesn’t guarantee what later buyers or sellers will do, but it gives everyone a concrete number to react to.

2. Autograph quality matters
   The PSA/DNA GEM MT 10 auto grade highlights how much attention is paid to the signature itself on high-end pieces. Clean ink, good placement, and no smudging all contribute.

3. Ultra-modern rarity is designed, not accidental
   Unlike vintage scarcity (where condition and survival are key), modern 1/1s like this are intentionally limited. Understanding the parallel structure of a set is essential if you’re building a player collection or trying to price cards.

4. Track both the player and the set
   Monitoring how 2025-26 Topps Chrome as a whole is received – print quality, checklist strength, and general collector sentiment – can be just as important as following Knueppel’s individual performance.

Final Thoughts

The $396,500 sale of the 2025-26 Topps Chrome Rookie Autographs Superfractor #TCAR-KK Kon Knueppel (1/1) at Goldin on March 15, 2026, marks an early high point for Knueppel’s ultra-modern card market.

As more 2025-26 product is opened and additional high-end Knueppel cards find their way to public auctions, this result will likely be a key reference in discussions about where his top-tier Chrome rookies sit. For now, it stands as one of the defining Knueppel cards in the hobby – the lone Superfractor rookie auto from a flagship chromium release, certified by PSA with a GEM MT 10 autograph.