One-hour alerts based on regular session data?



New member
2019 Donor
Hi, all.

I have noticed that, when setting alerts based on an indicator on a one-hour time frame, it looks like Thinkorswim is aggregating them at the top of the hour and using the extended session data.

For example, I got an alert at 11:00AM (Pacific) on an indicator, but when I looked at the chart, it was not in the range (the charts I look at aggregate from the 6:30AM open). It does show the indicator in that fashion, assuming you are looking at after-hours sessions (I always uncheck the "ext" box in the MarketWatch alert).

Does anyone else have experience with this? Is there a way to assure that alerts are also starting aggregations at market open? Thanks very much

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