"Malachite Capital Management LLC, a hedge fund specializing in trading volatility, said that it would shut down immediately." according to
https://www.wsj.com/livecoverage/coronavirus/card/is2y79bNxh...
"their strategy involved selling options on volatility exchange-traded products, which is essentially a bet that profits when markets stay calm."
Would this fund be considered "large" at 600mm?
There are also some older ones in the news e.g.:
https://www.ft.com/content/da193096-63af-11ea-b3f3-fe4680ea6... (March 11, Solus's flagship fund, 4.3bn, distressed debt focus)