Quote from Tums:
if you understand how IB's quote system works, and learn to operate under its functions, you will have no problem.
this holds true for eSignal, or any other datafeed as well. eSignal is not without its shortcomings. e.g. IB aggregates its quotes while eSignal does not. In a fast market (that's when you need the quote the most), IB will outshine eSignal by 10~20 seconds.
yes, you chose one symbol, but the software has to make MANY requests to IB to fetch the data for you.Quote from stock777:
Tums , you need to read carefully, you are being tested.
I said one backfill on one symbol.