RE:can someone make sense of the options chain for ACB That is not very many days to expiration. If the bid is 4.95 the aski will be higher. The open interest is simply the number of contracts that exist on that option. Given the high strike price I would wager the option will expire out of the money or the seller will buy it back at the ask as expiration date approaches. Given zero volume this is not a very liquid option. It does not mean the price is going to 20 dollars.
Look for the options that have thehighes volume on the nearest expiration date to determine where prices will end up.