In which circumstances iv increase and iv decrease?
1. If more active buyers are there in that particular strike price in call or put, in that strike price iv increases.
2. If more active sellers are there in that particular strike price in call or put , in that strike price, iv decreases.
Is this the only possibility or other possible scenarios are there, please elaborate on this
Does big players able to buy or sell options with out changing iv much? If so, how do they do it.
Any one please explain.