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)

"Everything is working amazing now. I'm already impressed with the true-tick feed of IQFeed and it's ability to support my 480 symbol layout." - Comment from Tyler via Email
"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
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry
"Its working FABULOUSLY for me!! Holy cow...there has been so much I've been missing lately, and with this feed and Linnsoft software...I'm in the game now." - Comment from Chris R.
"I have to tell you though that using the IQFeed API is about the easiest and cleanest I have seen for some time." - Comment from Jim
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"I noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"Everything is working great ! Very impressive client. The news refreshes better and is more pertinent than the ******* feed I paid $ 100/month for. I Also like the charts a lot." - Comment from Leon
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 »IQFeed Developer »IQFeed Developer Support »Questions on end-of-day data (EDS, HDT)
Author Topic: Questions on end-of-day data (EDS, HDT) (2 messages, Page 1 of 1)

-Interested User-
Posts: 1
Joined: Jul 10, 2020

Posted: Nov 22, 2020 01:21 PM          Msg. 1 of 2

1. I wish to download end-of-day data for all NASDAQ and NYSE symbols from 2010. The HDT command seems to be the solution, but the problem is that it requires me to specify symbols, and I do not know what symbols existed at that time. How do I get a list of all symbols that existed in 2010? Or is there another way to obtain this data without knowing all the symbols beforehand?

2. It seems the EDS command allows you to just specify a date, and it returns a list of EOD data for all symbols that were available at that date. Is this correct?

3. As of today (11/22/2020) the EDS command only works from me starting 2018-05-21 and onward, and any date before that gives me a "No file available" message. What is the date range supported by EDS?

4. It seems the prices returned by HDT are split-adjusted. Is this guaranteed? Also, are the volumes also split-adjusted?

5. On the other hand, it seems the data returned by EDS are _not_ split-adjusted. Is this correct?


-DTN Evangelist-
Posts: 165
Joined: Jul 3, 2019

Posted: Nov 23, 2020 04:22 PM          Msg. 2 of 2
1. Not as far back as 2010. As you discovered, the EDS/FDS/5MS commands can return a complete list back to about May 21 2018, when those commands were first introduced. That also answers your question #3.

2. Yes, but keep in mind that you must specify both an exchange group and a security type. Only symbols that match both of those (e.g. equities on NASFAQ) will be returned.

3. See #1.

4. Daily history command (HD_) are adjusted for past splits. Interval (time) and tick history commands are not adjusted for past splits.

5. Data in EDS records is not split-adjusted.

Gary Stephen
DTN IQFeed Implementation Support Specialist


Time: Fri January 15, 2021 3:36 PM CFBB v1.2.0 32 ms.
© AderSoftware 2002-2003