Hi Jerry,
1. Yes, I am clearing data before backfilling
2. Yes, I do have Historical Backfill Stocks RTH checked.
In this particular case the Daily chart for AQXP doesn't give the correct high of the day for August 10, but rather gives the close of the day as the high of the day. AQXP went all the way to 55$ and dropped sharply down to about $19
On the other subject:
Do you have, or planning to incorporate a stocks scanner?