Scanning for stocks / options with high volume in a minute?

[hQrGrIg8lY]

I want to scan for stocks that have an unusual orphan high volume minutes. It should satisfy two conditions.

1. the volume of the minute must much higher than the average (by a large time, say 10x)
2. The volume of the next minutes return to normal

The idea is to use this proxy to find potential large trades. (The idea way is to scan Time & Sales data, but I am not sure ToS offers this. But if it can be done with Time & Sales, it will be greater?)

Could anybody show me how to perform this scan?

EDIT:

For example, in the following example, there is a spike of volume at 13:03. How to define a scanner to scan for such an unusual 1-minute volume?

 

[MerryDay]

I want to scan for stocks that have an unusual orphan high volume minutes. It should satisfy two conditions.

1. the volume of the minute must much higher than the average (by a large time, say 10x)
2. The volume of the next minutes return to normal

The idea is to use this proxy to find potential large trades. (The idea way is to scan Time & Sales data, but I am not sure ToS offers this. But if it can be done with Time & Sales, it will be greater?)

Could anybody show me how to perform this scan?

Attached are the search results for all the posts that look for unusual volume. Reading through these rather lengthy threads will take some time.
But there are many variations of unusual volume sprinkled though out so it is worth it. Plug & play.
https://www.one-tab.com/page/iQSSX25bR161gGSVVMfy3g

 

[hQrGrIg8lY]

https://www.one-tab.com/page/iQSSX25bR161gGSVVMfy3g

Which one is relevant? It seems that none of them does exactly the same thing as I asked. Would you please clarify which one answers my question exactly?

1. I need 1-minute bar
2. The spike is much higher than usual.
3. The spike is much greater than the following bars, i.e., I am not looking for a consistent increase in volume.

 

[EightySix]

There are too many ways to do it. The screener will be there but it will not showing to you instantly and there is a lag.

You can do it by
create a scan with the unusual activity study all time frames set to 1 min to be triggered above value of 3 save the scan as watchlist and DONE. Each time there is a unusual activity it will show in the watchlist but 5 mins after. Hope that helps