Biogen halted, options expiring today.

[zdreg]

Would someone please summarize what happened on Monday?

 

[Same Lazy Element]

Would someone please summarize what happened on Monday?

Market makers where pretty short Russell and IWM upside gamma (on the back of some structured trades and also listed positions did not help), once the market started going up "cause certainty is good", they had to cover their delta thus taking it even further. The spooz followed shortly.

 

[zdreg]

Thanks for your reply. I was interested in reports about biogen because of the halt in trading.

 

[Same Lazy Element]

Thanks for your reply. I was interested in reports about biogen because of the halt in trading.

Lol, sorry, so many people have asked me about Russel calls that I naturally assumed that’s what you were talking about.

BIIB looked epic: