Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Why do some symbols not have an Options chain for specific expiration dates?
The answer is actually very simple: the cost of data. Seriously. Call the CBOE tomorrow and ask yourself. They have two big programs:  1) the penny pilot program, where options trade at penny increments instead of 5 cent increments. This is only extended to a select few symbols because of the amount of data this can generate is too much for the data vendors. Data vendors store and sell historical data. The exchanges themselves often have a big data vending business too. 2) the weekly options program, where only select symbols get these chains because of the amount of data they will generate. Liquidity and demand are factors in determining if the CBOE will consider enabling those series on new issues. (although they have to give the list of which symbols are on these programs to the SEC)