IB need to do quite a bit of software work to include the transaction numbers in their backfill. They would like an indication of how many traders think it is important.
Personally half of my charts (i use 2 to decide on a trade) are tick, the other time, so backfill is nearly useless to me without tick data.
Personally half of my charts (i use 2 to decide on a trade) are tick, the other time, so backfill is nearly useless to me without tick data.