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 just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin
"You have an excellent product !!!!!!" - Comment from Arely
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"I was on the phone with a friend who uses CQG and right after the Fed announcement, CQG was as much as 30 seconds behind DTN.IQ. Some quotes were off by as much as 15-18 cents. Your feed never missed a beat." - Comment from Roger
"I'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy via Email
"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
"Can I get another account from you? I am tired of ******* going down so often" - Comment from George
"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps
"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry
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
Viewing User Profile for: BottomFeeder
About Contact
Joined: Jan 29, 2021 11:24 AM
Last Post: Apr 4, 2022 12:02 PM
Last Visit: Apr 4, 2022 12:05 PM
Yahoo IM:
Post Statistics
BottomFeeder has contributed to 5 posts out of 20641 total posts (0.02%) in 515 days (0.01 posts per day).

20 Most recent posts:
IQFeed Developer Support » New to API, Basically C# question Apr 4, 2022 12:02 PM (Total replies: 3)

For C#, you should definitely take a look at
It deals with the TCP sockets and works great.


Data and Content Support » options Complex Order Books? Nov 17, 2021 08:01 PM (Total replies: 6)

I've been curious about this too. I think the original question was not about executed trades, but about bids/asks at different price levels on the regional options exchanges. The closest I can find on the available DTN subscriptions is the NASDAQ Level II (OpenView) subscription. "This includes the best bid/ask (top of book) from each MMID for NASDAQ and listed stocks)." It doesn't mention options or regional option exchanges, whether top-of-book, or complete-book. It sounds kind of like "NBBO" but broken down by MMID. Top-of Book implies that there is no depth-of-book info (i.e. bid size/ask size at price levels that are above/below BBO price). Just hoping for any clarification available. Much appreciated.


Thank You!


Does this request use real-time price data on the underlying when determining In/Out Of The Money contracts?
If not, can you let us know where/when the underlying price comes from? Thanks!


IQFeed Developer Support » 4/12/21 Data Outage Status Updates Apr 12, 2021 02:58 PM (Total replies: 31)

Is there an estimate on when the historical data will be backfilled?


Time: Mon June 27, 2022 4:13 PM CFBB v1.2.0 0 ms.
© AderSoftware 2002-2003