Do all brokers block seeing book depths?

1- With IBKR basic plan, I get to see maximum 3 books order depths. Is this so with all brokers? Is there another broker or chart provider that allows multiple book depths simultaneously at a reasonable rate?

2- Is getting live stream data from another source and trading on IBKR a risk? i.e. is it possible that data / prices may not match or is there a central organization that feeds all live stream market orders to all brokers.
 
No, any stock if I open more than three order depths (called Book Trader in TWS IBKR) it tells me I have to purchase more subscriptions.

But I am also interested in the same with Forex too.
 
No, any stock if I open more than three order depths (called Book Trader in TWS IBKR) it tells me I have to purchase more subscriptions.

But I am also interested in the same with Forex too.
You need the level 2 and other depth market data that's all. Ask customer services
 
1- With IBKR basic plan, I get to see maximum 3 books order depths. Is this so with all brokers? Is there another broker or chart provider that allows multiple book depths simultaneously at a reasonable rate?

2- Is getting live stream data from another source and trading on IBKR a risk? i.e. is it possible that data / prices may not match or is there a central organization that feeds all live stream market orders to all brokers.


It depends on brokers, how much you pay for the data , trading platform etc etc etc.

for my case, I can see some ladders with just one level, and some more than 10 levels.

more level --> higher operating cost.
 
It depends on brokers, how much you pay for the data , trading platform etc etc etc.

for my case, I can see some ladders with just one level, and some more than 10 levels.

more level --> higher operating cost.

Yes, it does. But they only show 3 books and ask $30 for each other simultaneous book.

If I want to look at book depth for 100s of books their pricing doesn't make sense.

Anyone can recommend a better place I can get depth of book much cheaper? @Robert Morse why is depth of book so expensive anyway? (What is the technical challenge)
 
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