Ken Griffin's Citadel extends winning streak in 2023 after last year's record gains, matching the broader rally in stocks

• Ken Griffin's hedge fund Citadel has continued to shine this year after a stellar performance in 2022. 
• The powerhouse's multi-strategy fund Wellington rose 2.8% this year through February. 
• The gains mirror advances in US stocks so far this year, with the S&P 500 up 3.8% since the start of 2023 through February. 

Billionaire Ken Griffin's hedge fund Citadel is off to a good start this year after enjoying record profits in 2022.