
ovolansky
-Interested User-
Posts: 9
Joined: Apr 18, 2018
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Posted: May 19, 2018 02:46 PM

Msg. 1 of 5
Hello,
I'm doing some simulations and I can't see any daily options data before 2011. Am I doing something wrong, or there are no options data before 2011?
Thank you, Ondrej
Edited by ovolansky on May 19, 2018 at 04:42 PM
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DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006
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Posted: May 21, 2018 09:29 AM

Msg. 2 of 5
Good morning,
That is correct, around that time we switched to the OSI symbol standard. Prior to that, symbols were reused and old data was deleted.
Tim
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jonnyb
-DTN Evangelist-
Posts: 122
Joined: Aug 15, 2012
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Posted: May 22, 2018 01:44 PM

Msg. 3 of 5
Is the historical option data for trades or bid/ask?
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DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006
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Posted: May 22, 2018 01:45 PM

Msg. 4 of 5
Good afternoon,
It is trades only as well.
Tim
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jonnyb
-DTN Evangelist-
Posts: 122
Joined: Aug 15, 2012
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Posted: May 22, 2018 01:46 PM

Msg. 5 of 5
Ok, figured it was trades only but thought I'd check. Thanks Tim.
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