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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »Trouble With Historical Options Tick Lookup API Calls

Author	Topic: Trouble With Historical Options Tick Lookup API Calls (4 messages, Page 1 of 1)
jcrivello -Interested User- Posts: 12 Joined: Sep 7, 2011	Posted: Sep 23, 2011 01:12 PM Msg. 1 of 4 Hello, I am having trouble with historical options tick look up calls today (via the TCP API). Example 1: I get an "Invalid symbol." error for AXP $40 11/19/11 Calls, which definitely exist and in fact are returned from the options chain symbol lookup API call: HTT,AXP1119K40,,20110901 000000,1,,,0,R!FwI=, R!FwI=,E,Invalid symbol., R!FwI=,!ENDMSG!, Example 2: I get a "!NO_DATA!" error for AXP $45 10/22/11 Calls, which I know for a fact have quite a bit of tick data going back for months: HTT,AXP1122J45,,20110901 000000,1,,,0,R!Sg==, R!Sg==,E,!NO_DATA!, R!Sg==,!ENDMSG!, I am encountering these sorts of errors with a number of different symbols. I can provide a much longer list of issues if needed. -Joe
jcrivello -Interested User- Posts: 12 Joined: Sep 7, 2011	Posted: Sep 23, 2011 01:23 PM Msg. 2 of 4 To add some additional information... it appears that I can't look up any options tick data from prior to early September for any symbol. -Joe
DTN_Steve_S -DTN Guru- Posts: 2093 Joined: Nov 21, 2005	Posted: Sep 23, 2011 02:47 PM Msg. 3 of 4 The history servers will return an Invalid symbol error for symbols that are valid but do not trade (or haven't traded in quite a while/ever). Additionally, we limit tick data to the most recent 8 calendar days during market hours (09:30 - 16:30 EST).
jcrivello -Interested User- Posts: 12 Joined: Sep 7, 2011	Posted: Sep 23, 2011 03:10 PM Msg. 4 of 4 Ah.. I see. Can I assume there hasn't been any activity in 120 days if I get back an "Invalid symbol." error from the historical tick lookup APIs? On the 8 calendar day restriction.. I assume you guys do this to reduce load on your servers during market hours? -Joe