PE expanding but CE nt falling

Today (15.06.2022) nifty PE premium expanded in the last hour but there was no fall in CE premium. Can someone plz explain WHY?

Both increased in many strikes. Vix is up. Can happen ahead of an important event. Call sellers tried to squeeze more premium with the slight possibility of the fed not going hawkish enough.

Its called IV expansion. Before big event , market is expecting big moves in either direction. Today , FED would be going to announce biggest rate hike in 28 years so any good or bad news during the event would make market big move in either direction . So usually call and put sellers closes there positions which makes rise in premiums of both CE and PE. Tomorrow everything would get stabilize.

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