It appears the highest strike price on the J20 LEAPS is 450 whereas there are higher strikes available for J19s. Is there a method to how strikes are released and is there any way to know when higher strikes will be added on the J20s? Thanks in advance.
They list an initial set of in-, at-, and out-of-the-money strikes. They'll add more as necessary if/when the underlying price approaches the edge of the listed range. I assume there is a minimum number of strikes listed around at-the-money at the start of a trading day, but I don't know at what price they would start adding additional strikes.