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)




"If you are serious about your trading I would not rely on IB data for serious daytrading. Took me a while to justify the cost of IQ Feed and in the end, it's just a 2 point stop on ES. Better safe than sorry" - Comment from Public Forum
"Thank God for your Data Feed as the only Zippers I see are on my pants (LOL), and no more 200 pip spikes to mess up charts." - Comment from Spiro via Email
"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email
"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam
"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
"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
"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
"You have an excellent feed. Very few spikes for Spot Forex." - Comment from Public Forum Post
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: ant1
About Contact
Joined: Nov 5, 2019 09:43 AM
Last Post: Nov 5, 2019 05:44 PM
Last Visit: Nov 6, 2019 06:13 PM
Website:  
Location:
Occupation:
Interests:
AIM:
ICQ:
MSN IM:
Yahoo IM:
Post Statistics
ant1 has contributed to 2 posts out of 21185 total posts (0.01%) in 1,634 days (0.00 posts per day).

20 Most recent posts:
Data Questions » On the historical data, The Close Price are almost ALWAYS different from the next Open price Nov 5, 2019 05:44 PM (Total replies: 3)

Thanks Gary for the quick answer and pointing out that this asumption is wrong.

I am quite not sure to understand how, and I would greatly appreciate to get the long answer.

So what you are saying is that - purelly timely speaking - is that for example - if we have the following two minutes for Ask:

10:00 : Open $4.95, Close $5.00
10:01: Open $5.02, Close $5.05

The open time for the 10:01 is not exactly 10:01:00.000000 but between 10:01:00.0000 and 10:01:59.9999999, the first time the order book has changed during this time span, modifying the Ask price.

Or is it that the close price of $5.00 doesn't really happens at 10:00.59.99999 - it is the last change in value recorded between 10:00:00.00000 & 10:00:59.999999 - and that it happens that the price changes at exactly 10:01:00.000000 - giving a different Open value than the close value?

Or is it a bit of the both?

Data Questions » On the historical data, The Close Price are almost ALWAYS different from the next Open price Nov 5, 2019 09:55 AM (Total replies: 3)

I was under the assumption that Always, the close price equals the next opening price durg the opening trading day - with the expection of stock exchange closing vs stock exchange opening the next day.

For example, when I query any NASDAQ stock minute granularity historical data, I get improper values.

Statistically, 90% of the time, the close price is different from the next opening price.

I can also see that inconsistency in the Charts App from the IQFEed API Connection Manager, to reproduce, just open the Charts APP, take ABC Symbol, for example, load the minutes, display OHLC and click on each minute - and you will see the inconsistency by yourself.

Same Happens when doing a 
HIT,Symbol,60,date from,date to,,,,1,Requestid
request to the API.

How can I get consistent open/close historical data with IQFeed?


Time: Thu April 25, 2024 4:22 AM CFBB v1.2.0 7 ms.
© AderSoftware 2002-2003