NYSE open book

I found the statement below on the Esignal web site. Does anybody know is this 10 second delay exists on all NYSE open books or is the esignal book a lager to the others. Also, does anybody use the NYSE book from esignal and if so, what do you think of it.

Thanks.



How Often Data for NYSE Open Book Updates
The NYSE sends out the data in 10-second bursts. That's why you may see the Open Book out of sync occasionally with the best bid/ask quote in a quote window. Unlike with NASDAQ Level II data, the NYSE doesn't stream the data tick by tick in Open Book

 

I don't use ESignal but I hear constant complains from other traders about delays in Times & Sales, I haven't heard the same about the NYOB.

 

Thanks for your response. The open book on esignal seems to have lots of features. It's the delay factor that i am concerned about.

I have been using the time and sales for years through esignal and i've never really had any problems with it. I have compared the speed to it with other time and sales and they were fine there too.

My issue was with this statement below which I found on their web site.




How Often Data for NYSE Open Book Updates
The NYSE sends out the data in 10-second bursts. That's why you may see the Open Book out of sync occasionally with the best bid/ask quote in a quote window. Unlike with NASDAQ Level II data, the NYSE doesn't stream the data tick by tick in Open Book

 

What are those special features on ESignal's NYOB?

I'm scalper so for me a minimun delay of any detail (tick chart, book, or prints) can make a huge difference.

 

I believe NY switched to 5 sec updates a while back so make sure Esignal is doing the same.

 

I signed up for the service but won't be active till this monday, so I haven't really had the opportunity to play with it to much yet. It offers lots of different color scenes and a Market depth meter. Not Sure how useful any of it will be until I actually get it set up.

I still would like to find out about this issue with the delay. I know that the book is always a bit slow and that the specialist can lock it up and play his silly little games, but I never knew that it only updated every 5 or 10 seconds. I know that when i place a bid or an offer, that i see it show up nearly instantaneously.