Dallas Mavericks star Luka Doncic set a record on Feb. 28. But it wasn't for his moves on the court. Instead, his autographed NBA rookie trading card sold for $4.6 million, making it the most expensive basketball card ever sold.

Just a month prior, a 1952 Mickey Mantle card became the highest selling sports card ever at $5.2 million. Then, in April, iconic sports card brand Topps announced it was going public through a merger with special acquisition company (SPAC) Mudrick Capital Acquisition Corporation II, in a deal valuing Topps at $1.3 billion.