Identifying Flex Options by Their Root Symbols

Summary

The document asks what options are represented by root symbols that begin with a digit and end with a stock ticker, using an adjusted-options example in which a root differs from the underlying ticker. The answer identifies these series as Flex options.

Flex options are listed options whose contract terms can be customized within exchange rules. The source points readers to general descriptions but does not explain which terms can be customized, how digit-prefixed roots are assigned, or how to distinguish these contracts from other adjusted options. Its identification is therefore brief and should be treated as a clue about the cited symbol pattern, rather than a complete guide to option symbology.

Key ideas

• The answer identifies digit-prefixed roots such as the example as Flex option series.
• Flex options are listed contracts with customizable terms within applicable exchange rules.
• The document gives no details on root-symbol assignment or the specific terms that may be customized.
• A root-symbol pattern alone may not provide a complete classification method.

Tags

# What kind of options use a root symbol that starts with a digit and ends with a stock ticker?


# What kind of options use a root symbol that starts with a digit and ends with a stock ticker?












The OCC publishes memos about how corporate actions cause listed options to be adjusted. Sometimes these memos specify option root symbols like '2DXC' alongside 'DXC' (link to an OCC memo dated 3/31/17).

When are symbols like '2DXC' used? What kind of options are these?

## Answer by Lliane (score 0, accepted)

https://quant.stackexchange.com/a/36908

These symbols are used for Flex options series

You can have a description of Flex options in either of the links below

http://www.cboe.com/products/flex-cflex

https://www.investopedia.com/terms/f/flexoption.asp

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.