Taking example of options for JPM:
I see symbols like JPMKD, JPMKS JPMKE etc. Does KD, KS etc carry any info or are these just random letters to differentiate different strike price?
There are other symbols that do not start with JPM, like LIVKU, LIVKH etc. These also have much less open interest as compared to JPM category with same strike price. What are the LIVs?