Monday, June 15, 2026

A Stock Market for Memorabilia

Photo: Collectible/Design: Alex Brooks

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

USGA, Shinnecock Hills Golf Club

Shinnecock Ready to Shine As Unofficial U.S. Open Anchor Site

Shinnecock last hosted in the U.S. Open in 2018.

America’s World Cup Opening Weekend Was a Success (Mostly)

Attendance is high even though tickets were pricey.

Fernando Mendoza’s Rookie Edge With Raiders? Access to Tom Brady 

Fernando Mendoza’s relationship with Tom Brady is growing.

Featured Today

Wisconsin Badgers forward Laila Edwards, left, and defender Caroline Harvey celebrate after Edwards scored against the Minnesota Gophers in the first period in a game Saturday, February 8, 2025, at LaBahn Arena in Madison, Wisconsin.

Two Rookies Are Rewriting Women’s Hockey Stardom

Their platforms are a mutual boon for the PWHL and its players.
Ai sports slop
June 5, 2026

How Sports Became Ground Zero for AI Slop

The category is the perfect breeding ground for AI content churn.
FILE PHOTO: Soccer Football - FIFA World Cup - UEFA Qualifiers - Group A - Germany v Luxembourg - Rhein-Neckar-Arena, Sinsheim, Germany - October 10, 2025 Germany coach Julian Nagelsmann
June 4, 2026

‘Weird Corners of the World’: How to Find a World Cup Coach

National associations look for a winning record—and also hope for serendipity.
June 3, 2026

The Elite High Schools Hosting World Cup Teams

Spain, Morocco, Croatia, and Switzerland chose schools as their tournament base camps.

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

How Long Acre Tavern Is Built to Handle Soccer’s Biggest Moments

Learn how Spectrum Business helps keep Long Acre Tavern in Times Square connected and ready to serve soccer fans from around the world.
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.