Registered: Feb 2007
Posts: 348

Is the data provide from ib for stk is from us exchanges or broker own buy sell trade data? There is quite a different compare the ib ohlc with csidata supposely have clean data from exchanges

Registered: May 2002
Posts: 6433

how different? can you give us an example? what time frame you are talking about?

Registered: Dec 2011
Posts: 370

IB data are from US exchanges but this is not true tick feed. The data is throttled and sampled about 4 times a second to keep customer quote board updating even during spike in market activity. The difference should not be very big and should be even less for bar data than for tick data but it is certainly troublesome to see discrepancies with other feeds. For regular trading it is OK but some people use different data feed and execute orders through IB only.

Registered: Feb 2007
Posts: 348

the sampling isn't the problem

the data data from ib open and close are different from the nasdaq or nyse for msft the different is around 0.01 to 0.06 there is a trade price for data feed the trade price is referring to trade price for trade occuring on ib or is trade price on exchanges?

another question does ib replace their open and close data on receiving from the official exchanges open close? u put a msft realtime chart the open may is 26.01 and on receiving official open 26.03 replace the open data

Registered: May 2002
Posts: 6433

http://www.elitetrader.com/vb/showt...s&pagenumber=32

Registered: May 2012
Posts: 86

What does IB charge for their Data if it is not the whole picture? Seems disingenous to me to pay for Data that is not complete.

Advantage Futures

Futures Brokerage & Clearing

AMP Global Clearing

Futures and FX Trading

Bright Trading

Professional Equities Trading

CTS

Futures Trading Software

DaytradingBias.com

Professional Trading Analytics

ECHOtrade

Professional Trading Firm

eSignal

Trading Software Provider

FXCM

Forex Trading Services

Global Futures

Futures, Options & FX Trading

Interactive Brokers

Pro Gateway to World Markets

JC Trading Group

Direct Access Trading

MB Trading

Direct Access Trading

MultiCharts

Trading Software Provider

NinjaTrader

Trading Software Provider

OANDA

Currency Trading

optionshouse

Option Trading & Education

Rithmic

Futures Trade Execution Platform

SpeedTrader

Direct Access Trading

SpreadProfessor

Spread Trading Instruction

thinkorswim by TD Ameritrade

Direct Access Trading

TradersStudio

System Building & Backtesting

Trading Technologies

Trading Software Provider

Trend Following

Trading Systems Provider