Personal Finance & Money Asked on May 18, 2021
I initially believed that all non-OTC options trading takes place on the CBOE, but this was proven false when I discovered that options also trade on Nasdaq PHLX, NYSE Arca, and other exchanges. This is similar to my initial misunderstanding of stock trading venues in the US (see: Can US stocks list on one stock exchange but trade on other US stock exchanges?). I have a few questions about options trading venues:
Yes, there are multiple exchanges for trading options in the United States:
Note: the name is quotes is what I would call it, but that is probably a prior name. They frequently change as the companies owning them go through restructuring and sell them on.
To clarify, we are talking out the original CBOE Options Exchange (sometimes called C1):
Other than being the largest options exchange, does the CBOE have any special role in the US options market?
No. If CBOE disappeared tomorrow, the market wouldn't blink. In fact sometimes an exchange may be offline for hours due to some mundane technical problem (e.g. first thing on Monday after a software upgrade) and there is little impact. Few participants trade only on CBOE without access to any other platform to execute a trade.
Who gets to create new option chains or contracts (e.g. new expiry dates, new strike prices, etc.)?
Any options exchange can list a new 'class' of options but they usually need a market maker willing to provide continuous quotations in that options class. Market makers sometimes ask exchanges if they can list a new options class, and sometimes exchanges (presumably due to member request) ask market makers if they can do the same.
Exchanges usually add new expirations and strikes in line with their own listing rules or sometimes on the request of a participant.
If an options exchange lists a new series intraday, typically every other options will pick it up and list it on their system the next day.
Can any options exchange create new options chains or contracts at any time?
The exchanges have their own listing criteria specified in their rulebook. There has been pushback from market makers on exchanges adding too many strikes (each strike takes up system capacity) so they are less liberal than they used to be. There have been instances where an exchange has listed extra options 'by mistake', which in turn have been copied by other exchanges the next day, and a subsequent attempt by the exchanges to remove the strikes. Some exchanges now have a 'close only' designation on certain series to try to remove them prior to expiration, where they will only allow the order if the order will reduce an existing position (i.e. decrease the open interest).
Is the options market similar to the stock market in that there is a single "listing exchange" for each chain or contract, but many "trading exchanges"? Or are there only "trading exchanges"?
I think the "listing" responsibilities are handled by the OCC, so there is no special designation for a security listed on one exchange and not another.
Correct answer by xirt on May 18, 2021
Maybe 30 years ago, it was relatively simple. There were four equal option exchanges though the CBOE offered the largest number of optionable stocks. The four exchanges and the OCC would meet to determine which stocks to begin option trading on and the exchanges would divvy them up. Since then, two of these exchanges have been taken over and the CBOE has become dominant. I don't keep up with administrative evolution so I can't answer much of your question regarding what happens now, procedurally.
Regarding new listings, last week there was a question posed about this. Here is what I wrote:
The CBOE has a variety of requirements that must be met in order for them to consider offering option trading for a security. Some include NMS listing, minimum price per share, number of shares outstanding, number of share owners, number of shares traded, etc. And even if these requirements are met, there's no guarantee that options will trade since it is up to the option exchanges and the OCC to select which ones they'll offer.
There is a basic set of rules for the option expiration cycle which spells out what months will trade for all options, what weeks will trade for those that offer weekly options as well for those that offer LEAPs. See Link1 and Link 2.
There is also a basic framework for strike price intervals. As a general rule, strike price they are based on the security's price:
However, these rules are far from rigid. Many low priced stocks with active options have strikes $1 apart and sometimes even 50 cents. Stocks as high as $100 can have strikes $2.50 apart. Liquidity is the determinant.
There is also a set of rules regarding new strikes prices. The most basic one applies to a stock that experiences a very large move to or even beyond the highest (or lowest) existing strike price. The exchange will then add new strikes, usually the next day.
You can request via Email that the CBOE add a new strike for trading. If the request complies with the rules, they will add it the next day. For example, the first two weekly expirations have 50 cent intervals but the third week doesn't. I have done this a number of times.
If you want greater detail, Google for the CBOE rules. It spells out all of this.
Answered by Bob Baerker on May 18, 2021
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