"Citadel [...] sold $1 billion of high-grade bonds Wednesday to fund a payout to its owners" - Wait. Isn't that definition of a ponzi scheme?

"Citadel LP, the hedge fund manager founded by Ken Griffin, sold $1 billion of high-grade bonds Wednesday to fund a payout to its owners.

The offering was in two parts, according to a person familiar with the matter who asked not to be identified as the details are private.

The longer portion of the deal, a $500 million seven-year note, will yield 1.9 percentage point above Treasuries..."

Sorry, can't cite more - it's behind a paywall.

Source: https://www.bloomberg.com/news/articles/2025-01-15/citadel-is-selling-1-billion-of-bonds-to-fund-payout