
jcrivello
-Interested User-
Posts: 12
Joined: Sep 7, 2011
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Posted: Sep 19, 2011 01:59 PM

Msg. 1 of 3
Most of the IQFeed options symbol format from the option chain lookup API is self-explanatory, but there is one piece that I can't figure out.
Here are some option chain symbols for MSFT:
MSFT1221A15 (January lookup, is a call) MSFT1119K18 (November lookup, is a call) MSFT1221M21 (January lookup, is a put) MSFT1119W21 (November lookup, is a put)
What is the third to last character in the symbols?
In these symbols alone, I see four values (A, K, M, W). I also saw reference to 'G' while searching the forums. Is there a definitive list of these along with an explanation?
-Joe
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