Introduction
The sports card market continues to thrive as the NBA Finals, Stanley Cup Finals, and Major League Baseball season generate excitement across the hobby.
Playoff performances are once again proving to be one of the biggest catalysts for card price growth, while top MLB prospects continue attracting serious collector attention. As investors chase momentum and collectors look for the next breakout star, several cards have posted significant gains over the past month.
This week's biggest risers feature a mix of NHL postseason standouts, emerging baseball prospects, NBA rookies, and one of basketball's most popular superstars. With the sports calendar packed with meaningful games, the hobby remains as active as ever.
Let's break down the Top 5 Sports Cards Heating Up by Sports Card Investor based on recent performance, hobby buzz, and market data.
Sports Card Market Pulse
The sports card market remains one of the strongest alternative collectible markets in 2026.
SCI 500 Index Performance
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Up 0.7% over the last 7 days
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Up nearly 5% over the last 30 days
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Up more than 25% year-to-date
These gains continue to reinforce what many collectors have been saying throughout the year: 2026 is shaping up to be one of the hottest years in sports card history.
Several key factors continue driving market momentum:
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NBA Finals excitement
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Stanley Cup Finals performances
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MLB prospect hype
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Growing demand for graded rookie cards
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Increased collector confidence in young stars
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Strong activity in both modern and vintage cards
With playoff heroes emerging almost nightly and baseball's next generation making headlines, collectors remain highly active across multiple sports.
The Top 5 Sports Cards Heating Up
5. Mitch Marner
The Vegas Golden Knights star winger has been one of the biggest stories of the Stanley Cup Playoffs.
After joining Vegas, Mitch Marner elevated his game to another level and entered the Stanley Cup Finals leading all playoff scorers with 21 points in 16 games. His outstanding postseason performance has positioned him as a legitimate Conn Smythe Trophy candidate and generated significant hobby interest.
Key Card Movements:
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2016 SP Authentic Future Watch Auto /999 (PSA 10): $580 → $645
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2016 Upper Deck Young Guns Rookie (PSA 10): $200 → $287
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2016 Upper Deck Young Guns Rookie (PSA 9): $68 → $100
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2016 Upper Deck Young Guns Rookie (Raw): $43 → $100
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2016 Upper Deck Young Guns Canvas Rookie (PSA 10): $120 → $156
Marner's playoff dominance has helped push several of his key rookie cards significantly higher as collectors anticipate a potential Stanley Cup championship.
4. Jesus Made
Few prospects in baseball have generated as much excitement recently as Milwaukee Brewers shortstop prospect Jesus Made.
At only 19 years old, Made continues to impress scouts and collectors alike with his advanced hitting ability, power potential, and overall offensive production. His strong May performance helped solidify his status as one of baseball's fastest-rising prospects.
Key Card Movements:
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2025 Bowman Chrome Prospect Auto 1st (PSA 10): $620 → $900
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2025 Bowman Chrome Prospect Auto Refractor /499 1st (PSA 10): $1,350 → $1,800
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2025 Bowman Chrome Prospect Auto Speckle Refractor /299 1st (PSA 10): $1,260 → $2,100
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2026 Bowman Anime SSP (Raw): $400 → $555
Prospect collectors continue aggressively targeting Made's Bowman cards as expectations rise for his future major league impact.
3. Dylan Harper
San Antonio Spurs rookie Dylan Harper continues to strengthen his case as one of the NBA's brightest young stars.
Harper has delivered several impressive performances throughout the postseason, showcasing a mature all-around game that includes scoring, playmaking, and strong decision-making under pressure. His continued growth alongside Victor Wembanyama has collectors excited about San Antonio's future.
Key Card Movements:
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2025 Topps Base Rookie Card (PSA 10): $51 → $105
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2025 Topps Chrome Refractor Rookie (Raw): $31 → $63
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2025 Topps Chrome Rookie Auto (Raw): $210 → $500+
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2025 Topps Chrome Fanatical Rookie (Raw): $34 → $72
As Harper gains more exposure during the NBA Finals run, demand for his rookie cards continues to accelerate.
2. Victor Wembanyama
Victor Wembanyama has appeared near the top of virtually every sports card list throughout 2026, and this week is no exception.
The Spurs superstar entered the NBA Finals averaging more than 30 points, 13 rebounds, and 4 blocks per game during the postseason. His combination of elite production, generational talent, and hobby appeal continues to fuel enormous demand.
Key Card Movements:
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2023 Optic Base Rookie (PSA 10): $121 → $261
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2023 Prizm Base Rookie (PSA 10): $243 → $565
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2023 Prizm Silver Rookie (PSA 10): $2,700 → $4,000+
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2023 Topps Mercury #10 (PSA 10): $160 → $325
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2023 Topps Now NBA Draft Rookie (PSA 10): $55 → $138
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2025 Topps Chrome Sky Write Signatures (PSA 10): $2,900 → $5,200
Even heavily produced rookie cards continue climbing as collectors view Wembanyama as one of the hobby's premier long-term assets.
1. Jalen Brunson
At the top of this week's list is New York Knicks superstar Jalen Brunson.
Brunson has transformed both the Knicks franchise and his sports card market. After leading New York to its first NBA Finals appearance in 27 years, he followed it up with a brilliant Game 1 performance, scoring 30 points while helping the Knicks overcome a 14-point deficit. Collectors have responded aggressively, sending several of his key rookie and modern cards soaring.
Massive Card Price Surges:
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2018 Optic Shock Rookie (PSA 10): Up 131%, $175 → $405
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2018 Prizm Silver Rookie (PSA 10): Up 242%, $371 → $1,300
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2018 Prizm Base Rookie (PSA 10): Up 208%, $146 → $450
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2025 Bowman Anime SSP (Raw): $700 → $1,200
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2025 Topps Chrome Glass Canvas SSP (Raw): $120 → $250
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2025 Topps Chrome Paradox SSP (Raw): $30 → $65
With the Knicks making a historic Finals run, Brunson has become one of the hottest players in the entire hobby.
Frequently Asked Questions
1. Why are sports card prices rising in 2026?
Strong playoff performances, prospect hype, increased collector participation, and growing demand for graded cards have all contributed to rising prices throughout the sports card market.
2. Why do playoff performances impact card values?
Playoff success increases player visibility and often creates emotional buying activity among collectors, causing card demand to spike quickly.
3. Why are Victor Wembanyama cards so valuable?
Wembanyama is widely viewed as a generational talent with MVP potential. His elite production and global popularity continue driving strong demand.
4. Are hockey cards gaining momentum in 2026?
Yes. Strong Stanley Cup Playoff performances from players like Mitch Marner have brought renewed attention to hockey cards.
5. Why are baseball prospect cards so popular?
Prospect cards offer collectors the opportunity to invest before players reach the major leagues, creating significant upside potential if they become stars.
6. What is the SCI 500 Index?
The SCI 500 Index tracks 500 of the most prominent sports cards in the hobby and serves as a benchmark for overall market performance.
Conclusion
The sports card market remains incredibly active as playoff performances continue driving collector demand across multiple sports.
Mitch Marner's Stanley Cup Finals run has energized hockey collectors, while Jesus Made continues emerging as one of baseball's most exciting young prospects. Dylan Harper's rookie-season success has elevated his market, and Victor Wembanyama continues to solidify his position as one of the hobby's most valuable modern stars.
However, the biggest story this week belongs to Jalen Brunson. His leadership during New York's remarkable NBA Finals run has created one of the strongest card market surges of any player in basketball.
As the NBA Finals, Stanley Cup Finals, and MLB season continue, expect more volatility, more breakout performances, and plenty of opportunities for collectors paying close attention to the market.
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