Wednesday, September 30, 2026
  • -
    days
  • -
    hours
  • -
    minutes
  • -
    seconds

A Stock Market for Memorabilia

Photo: Collectible/Design: Alex Brooks

Want more from Front Office Sports
in your search results?

Add Front Office Sports on Google

If you want to cash in on sports collectibles without the labor of searching for unique mementos, meet Joel Platt.

The 82-year-old’s collection of sports memorabilia items — all locked in a high-security vault in Florida — has gone public.

After opening the Sports Immortals Museum in 1995, Platt is now selling shares of his collection through IPOs for individual items on collectable.com.

“The IPO sold out, but shares have begun trading at prices based on investor demand, via a secondary market [on the site] — similar to that of Wall Street,” said Ezra Levine, CEO of Collectable. “It’s one way for investors to realize profits.”

Platt sourced his collection of more than one million items by creating relationships with sports moguls, traveling the world, and understanding which mementos will carry value.

He started collecting when he was four years old. His parents got him a Babe Ruth baseball card when he was bedridden after suffering injuries from a gasoline explosion.

Platt’s collection includes:

  • Michael Jordan’s 1984 game-used rookie jersey, valued at $242,000. The IPO sold out in under 15 minutes.
  • Muhammad Ali’s “Rumble in the Jungle” championship belt, valued at $428,000. The IPO sold out in 24 hours.
  • A signed Wilt Chamberlain high school jersey from 1954, valued at $316,000. The IPO sold out in 15 minutes.

While Platt’s entire collection is not yet on Collectable, he plans to add new pieces soon.

This field is for validation purposes and should be left unchanged.

Sign up for
The Memo Newsletter

Get the biggest stories and best analysis on the business of sports delivered to your inbox twice every weekday and twice on weekends.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Linkedin
Whatsapp
Copy Link
Link Copied
Link Copied

What to Read

Sep 17, 2026; New York City, New York, USA; Philadelphia Phillies shortstop Trea Turner (7) dives safely into third base after advancing on an errant New York Mets pickoff throw to first base during the seventh inning at Citi Field. novig
Exclusive

Novig to Quadruple Valuation With New Funding Round

The company is fundraising at a $2 billion valuation.

U.S. Presidents Cup Comeback Delivers Viewership Boost for NBC

NBC drew two million viewers for the final round.

NFL Brazil Game Nabs Record Audience

CBS said that the game averaged 24.9 million viewers.
Jun 16, 2026; Los Angeles, California, USA; Spectrum SportsNet LA play-by-play announcer Joe Davis watches batting practice before the game between the Los Angeles Dodgers and the Tampa Bay Rays at Dodger Stadium. Mandatory Credit: Kirby Lee-Imagn Images

Joe Davis Still Has Vin Scully’s Advice ‘Ringing in My Ears’

Davis is preparing to call his fifth World Series for Fox.
podcast thumbnail mobile
Front Office Sports Today

9/30/26 – Man City Found Guilty, NBA’s $12B Vegas Race, College Sports Bill Passes

0:00

Featured Today

Morishita-Sato-homerun-celebration-at-Meiji-Jingu-Baseball-Staidum-2025

Japanese Baseball Is Fighting Back Against MLB Talent Drain

Nippon Professional Baseball is reimagining how to be a global juggernaut.
Aug 9, 2026; Bedminster, New Jersey, USA; President Donald Trump walks out of the clubhouse during the final round of the LIV Golf New York tournament at Trump National Bedminster.
September 25, 2026

Trump’s Year of Sports Gets Busier With CFB, Presidents Cup

The impact of Trump’s attendance varies across each sporting event.
A Bar of Their Own
September 25, 2026

Women’s Sports Bars: Novelty Has Worn Off, ‘That’s a Good Thing’

They’re leveling up, but sustainability remains the first consideration.
Hot & Social/Mets
September 18, 2026

Sports Teams Are Playing a New Role: Matchmaker

The latest promotion at the stadium? Love.
Exclusive
September 18, 2026

Vicious Infighting Is Jeopardizing the Future of Women’s Baseball

The WPBL’s own CEO admits there’s a “power struggle.”

Caleb Williams’s Investment Playbook: ‘No Vices’

The Bears QB has put money into sports, tech, and wellness start-ups.
[Subscription Customers Only] Jul 13, 2025; East Rutherford, New Jersey, USA; Chelsea FC midfielder Cole Palmer (10) celebrates winning the final of the 2025 FIFA Club World Cup at MetLife Stadium
February 21, 2026

Soccer’s ‘Crown Jewels’ Are Devouring Smaller Clubs

Mega conglomerates are feeding a big business machine. Fans are furious.
Reggie Bush speaks on unionizing college football players during the Rose Bowl Hall of Fame induction ceremony at the University Club of Pasadena in Pasadena, Calif. Tuesday, Dec. 31, 2024.
March 5, 2026

Former NFL Pros Launch PE Firm for Emerging Leagues

Terrence C. Murphy and Reggie Bush are targeting $150 million for their debut fund.
Sponsored

Beyond the Scorecard: How Dow Is Putting Purpose at the Center of Women’s Golf

Discover how Dow and the LPGA are building a partnership with lasting impact.
Dec 30, 2025; Los Angeles, California, USA; Los Angeles Lakers guard Luka Doncic (77) reacts after scoring a basket against the Detroit Pistons during the second half at Crypto.com Arena
January 4, 2026

Pro Team Valuations Are Set to Keep Climbing in 2026

Asset scarcity and increasing media-rights deals underpin soaring valuations.
December 27, 2025

‘Why Not the Dodgers?’: How Billie Jean King Became an LA Owner

“Getting involved with the Dodgers literally changed our lives,” Ilana Kloss says.
December 23, 2025

Ben Simmons Buys a Sport Fishing Team

“I think I can really help this league grow,” Simmons told FOS.
Jacksonville Jumbo Shrimp mascot Scampi waves to fans during Opening Day baseball against the Gwinnett Stripers on March 29, 2024.
December 17, 2025

Private Equity Dives Further Into Minor League Baseball

Seven MiLB teams have changed hands in the last week.