Option Symbols Are Changing

The symbols used to trade options are changing soon. Here is how Fidelity explains the changes:

Options Symbology Initiative (OSI)
Background

Due to the significant growth of the option market, the Options Clearing Corporation (OCC) has enacted an industry-wide initiative known as the Options Symbology Initiative (OSI). Fidelity will be implementing changes during the weekend of January 23, 2010. The new options symbology will expand the current option series key, commonly referred to as the OPRA symbol, from a 5 character convention to a new key that accommodates up to 22 characters.

Benefits of the symbol change

It will be easier to identify a contract’s underlying security, original expiration date, call or put, and strike price without the use of code-translation tables. It provides more flexibility than the OPRA symbols. The new convention allows for the addition of unique identifiers for new issuers, for the indication of expiration days other than the standard monthly expiration, [...]