Welcome to NexusFi: the best trading community on the planet, with over 150,000 members Sign Up Now for Free
Genuine reviews from real traders, not fake reviews from stealth vendors
Quality education from leading professional traders
We are a friendly, helpful, and positive community
We do not tolerate rude behavior, trolling, or vendors advertising in posts
We are here to help, just let us know what you need
You'll need to register in order to view the content of the threads and start contributing to our community. It's free for basic access, or support us by becoming an Elite Member -- see if you qualify for a discount below.
-- Big Mike, Site Administrator
(If you already have an account, login at the top of the page)
I'm using NinjaTrader 7 linked to IB's data feed through the Trader Workstation API.
Why is Time & Sales on IB's TWS so different than on Nijatrader 7 Time and Sales? For example on SPY the bid, bid size, ask, ask size are the same on both, but the time stamp and sale prints are different. Shouldn't NT7's Time and Sales be based on the Last, Last Size you are seeing on the TWS Time and Sales?
Can you help answer these questions from other members on NexusFi?
Thedata feed from Interactive Brokers does not include time stamps. Therefore NinjaTrader will use your system time to add time stamps. Quality data feeds include time stamps and NinjaTrader does not need to add them.
This should at least explain, why you would see different times. There may also be a communication problem between the (badly documented) API of Interactive Brokers and the NinjaTrader adapter. It is impossible to rely on the sales prints or even the real-time volume shown on the chart.
Thanks, this explains a lot of the strange prints I've been getting in Time & Sales and on the charts. IB data feed is fast and cheap but on the flip side is it aggregates the data and, as I just found out, doesn't provide time stamps, great.
And, just for the record, my biggest peeve with NinjaTrader is that its IB adapter isn't kept up to date.
@Fat Tails
Once in a while on T & S, I notice a large prints first on the bid and then on the ask same size, same timestamp, and right next to each other. Is it a double print, and why is it happening, do ya know?