> The Children’s Investment Fund Management (UK) LLP (TCI) is a London‐based hedge fund management firm founded by Chris Hohn in 2003 which manages The Children’s Investment Master Fund.... In January 2022, TCI was named by the Guardian as the world's top-performing hedge fund.

https://en.wikipedia.org/wiki/The_Children%27s_Investment_Fu...

It's an old-school hedge fund basically driven by a few people deciding which stocks to buy and how to put pressure to make then more valuable.

These generally tend to fail spectacularly, and aren't particularly good at hedging.