Any platform that shows pre market RVOL?

I have DAS and TSW and neither show it till mkt open. Trying to see if its possible to see relavtive pre market interest.

 

Relative volume is not available in premarket. Not even scanners have them.

 

Would be awesome to have tho. Can anyone else see the possible merits?

 

There's no reason it couldn't be implemented in scanners and the like.

I use Trade-Ideas and it already supports pre market volume (ie volume before market open)

 

Indeed there's no RVOL indicator in TWS, however you can configure a scanner to show the pre-mrkt volume ("volume") and the opening volume Average. With those values you can easily compare the current pre-mrkt volume against the average.