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Wait, Do PSA 9s Have Better ROI Than PSA 10s?!?

Episode 61

Is the PSA 9 dead? Not so fast. Matt digs into three iconic cards across three sports to test a strange pattern: PSA 9s outperforming PSA 10s.

He inde…

2 months, 3 weeks ago

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I Ran a 15-Month Soccer Card Fund. Here's What Actually Worked.

Episode 60

 A 15-month soccer card investment fund, reviewed in real time during the 2026 World Cup. Why demand trickles top-down in illiquid markets, why case …

3 months ago

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Parallels, Graders, and How PSA's Submission Pause Might Affect the Market

Episode 59

 I looked at all 83 parallels of Victor Wembanyama's 2023 Prizm rookie and indexed every sale against his player market. The best returns did not com…

3 months, 1 week ago

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All 63 Wemby Rookie Prizm Cards Ranked by Return

Episode 58

One Victor Wembanyama rookie card. Sixty-three parallels. Every grade, every grader, tracked from first sale to today. 

Only on Slabnomics will you he…

3 months, 3 weeks ago

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Only 4 of These 1952 Topps Legends Beat the S&P 500

Episode 57

 Out of the 10 biggest names in 1952 Topps, only four beat the S&P 500 over 22 years. 

We pulled 9,720 real sales back to 2004, ran every PSA grade th…

3 months, 4 weeks ago

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PSA: The Federal Reserve of The Hobby

Episode 56

PSA just halted all four of its value grading tiers. The hobby is calling it a failure. We're calling it something else. PSA just acted like a centra…

4 months ago

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Mangos, Messi, and Market Cap: The Hidden Math of Card Prices

Episode 55

 Sports card investing through a Wall Street lens. Matthew Worley breaks down supply, demand, and market cap mechanics using three Messi Prizm World …

4 months, 1 week ago

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Don't Buy New Card Releases!

Here's why it's a bad investment every time. 

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4 months, 2 weeks ago

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Modern Cards Are Overvalued (Value vs. Growth)

Episode 53

174 of my own card flips: 
Vintage won 62.7% of the time. Modern won 40.7%. 

Value Premium, What cards are most like value stocks and growth stocks, an…

4 months, 3 weeks ago

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How To Read the Card Market Like a Wall Street Analyst

Episode 52

Seven Card Ladder charts. Three years of price and volume. Seven different cycle stages.

This episode applies the Wyckoff Method, the 100-year-old fra…

5 months ago

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