If you go into the options market (during a limit up/down move), and you want to hedge your futures position (which is locked limit)....how do you know if your actually going to be delta hedged with options; since the options are trading while the underlying is locked.
If ATM options are increasing in price, how can you tell if thats from the underlying price (which is theoritcally still moving even though its locked limit), or if an increase in volitility is being priced into the options. Basically, when the mkt is locked limit, how do you adjust your option pricing models (specifically the underlying price and volitility inputs)...so you can figure out the greeks and actually get yourself properly hedged? Do you look to the cash market, then try to estimate the basis and come up with a theoritical price/volitilty input?