Fox scored 16.7 million viewers for the World Cup final in November; Peacock had 9 million for its Spanish-language coverage.
Soccer's UEFA Champions League offers the next big Spanish-language rights opportunity.
"The World Cup has opened up a whole different market for Spanish-language rights," said one sports exec.
That gives Peacock Spanish-language streaming rights to this year's FIFA Women's World Cup along with the men's World Cup in 2026, which is being co-hosted in Canada, Mexico, and the US.
"Spanish-language rights have been going up consistently," Irwin Raij, the co-chair of law firm Sidley Austin's entertainment, sports, and media group, told Insider.