Multiple symbols for same option

If you have a look at the near the money Oct options for RTP, there are two symbols listed for each option with greatly different prices. Seems to me that I read this is due to an event of some sort with the company but I don't recall what I read. Can someone explain why there are two symbols with such differing prices?

Thanks,
Ray
 
Multiple symbols means there's been an option adjustment due to a corporate action. Go to the CBOE.com web site and do a search on RTP. Open the most recent one(s) and you'll find the terms of the adjustment.
 
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