hi actually iv increases when buying demand more whether call or put.. and due to put call parity opposite side iv also impacted.

when standard deviation of option price increases its IV increases when demand or supply but need some clarifiaction from other member if they can throw light.

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.

Yes according to my analysis you are almost right….. But also you have to consider other factors like O. I. , change in O. I., Volume and Greeks . For accurate analysis because N. B. sir alaways said option chain is 360 degree analysis..

yes but you need to confirms only when it mixed with volume i.e whether volume is increasing or reducing.

Implied volatility is directly influenced by the supply and demand of the underlying options and by the market’s expectation of the share price’s direction. As expectations rise, or as the demand for an option increases, implied volatility will rise. Options that have high levels of implied volatility will result in high-priced option premiums.

As per my understanding iv increase
1. when there the demand of particular option is increased.
2. When writers are fearful about market direction. So they quote high premium of option. This phenomenon also increase Iv.

This is my understanding.

OI increasing means money flow increased and IV increased trend continue whether up or down. OI increasing and IV Decreasing trend may level off. and OI(money flow) decreasing with IV decreasing (You can also consider premium Decay), here is Trend reversal.

Volume analysis with change in OI can find big player.

iv correlate with fresh position and existing position…. when put writing fresh position, iv increases with market goes up… but while those writing position closing again iv increase but this time market going down…. recently live streaming nitin sir told us…