May 22, 2020 at 3:01 PM #210834
This is right Rule , what is IV? this is demand and supply rule. if there is big fish then there shall be small fish too. however when big fish is working there can not be big change in IV as number of contract will be high and volume will be less. IV need rapid price change to be done.
unless there is price change there will not be IV change. keep this in mind and figure out who are working retailer or big player.