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"I ran your IQFeed DDE vs. my broker vs. a level II window for some slow-moving options. I would see the level II quote change, then your feed update instantaneously. My broker's DDE, however, would take as much as 30 seconds to update. I am not chasing milliseconds, but half a minute is unacceptable." - Comment from Rob
"You are either overstaffed or people just don't have problems with your feed because customer support always answers the phone quickly." - Comment from Jay via Email
"And by the way, have to say this. I love the IQFeed software. It's rock solid and it has a really nice API." - Comment from Thomas via RT Chat
"I noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"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
"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike
"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"I like you guys better than *******...much more stable and a whole lot fewer issues." - Comment from Philip
"I just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email
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BottomFeeder has contributed to 5 posts out of 21185 total posts (0.02%) in 1,184 days (0.00 posts per day).

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

For C#, you should definitely take a look at https://github.com/mathpaquette/IQFeed.CSharpApiClient
It deals with the TCP sockets and works great.
-BF

Data Questions » options Complex Order Books? Nov 17, 2021 08:01 PM (Total replies: 12)

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.
-BF

Data Questions » CEO with Filter Type = 2 - How recent is underlying price? Jun 1, 2021 11:32 AM (Total replies: 3)

Thank You!
-BF

Data Questions » CEO with Filter Type = 2 - How recent is underlying price? May 28, 2021 11:03 AM (Total replies: 3)

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!
-BF

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?
-BF


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