Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)

"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"Everything is working great with the API. I love it." - Comment from Calvin
"If you want customer service that answers the phone, your best bet is IQFeed. I cannot stop praising them or their technical support. They are always there for you, and they are quick. I have used ****** too but the best value is IQFeed." - Comment from Public Forum
"My broker in Davenport suggested I give you a try as he uses your service and says its the best." - Comment from Bill via RT Chat
"I would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"I "bracket trade" all major news releases and I have not found one lag or glitch with DTN.IQ feed. I am very comfortable with their feed under all typical news conditions (Fed releases, employment numbers, etc)." - Comment from Public Forum
"I've been using Neoticker RT with IQFeed for two months, and I'm very happy with both of the products (I've had IQFeed for two years with very few complaints). The service from both companies is exceptional." - Comment from Public Forum
"It’s so nice to be working with real professionals!" - Comment from Len
"After all the anxiety I had with my previous data provider it is a relief not to have to worry about data speed and integrity." - Comment from Eamonn
"You have an excellent product !!!!!!" - Comment from Arely
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »NEW IQFEED FORUMS »Data Questions »Option naming convention
Author Topic: Option naming convention (2 messages, Page 1 of 1)

-Interested User-
Posts: 6
Joined: Jul 26, 2023

Posted: Aug 21, 2023 12:46 PM          Msg. 1 of 2
Can someone explain the option data naming convention. I see that there's data for


and I am guessing that this corresponds to:

AAPL 23 (year) 25 (day of the month) H (is this meant to be the month as the 8th letter in the alphabet?) 175 (strike price)

Is that a correct interpretation?

-DTN Guru-
Posts: 379
Joined: Jul 3, 2019

Posted: Aug 22, 2023 03:21 PM          Msg. 2 of 2
You pretty much have it right. Since about 2010, options are named from a standard convention, which works as you describe. I should add a few details:

  • If the expiration day is a single digit, it gets a leading zero, e.g. AAPL2309H175 if the expiration day was the 9th.

  • Strike Prices do not get a leading zero, e.g. AAPL2325H50

  • Call options are A-L in order by month, put options are M-X in order by month. AAPL2325H175 is a call option; the put option for the same strike price would be AAPL2325T175. Here's the list:

  • Sometimes there will be an extra number in the option symbol, like FWOA22315I50. This typically happens when the underlying symbol splits; the extra digit represents some kind of change in the deliverable or price. is a good source of information about this. Each symbol has a memo and a description of what the new option symbol means exactly. You can even look up FWOA (it's memo number 53034).

Gary Stephen
DTN IQFeed Implementation Support Specialist


Time: Thu December 7, 2023 10:00 AM CFBB v1.2.0 8 ms.
© AderSoftware 2002-2003