Quote from IBsoft:
In the latest IB TWS Beta you will find that we gave the charts a face lift and we started providing several technical indicators.
Soon we will release an upgrade that will allow the API users to request up to 1 week of backfills free of charge.
Quote from mokwit:
This is a welcome feature but there are multiple serious problems being reported by numerous people on this board I suggest someone at IB does something about those too.
For now I have pretty much given up on TWS/IB due to multiple issues all confirmed by other users.
Addresss these issues and you will have an unbeatable offering for many users.