Afterhours volume scan

[RoscoFelix]

Hey first time posting here. I'm looking for a scan to be able to "count" the amount of volume traded in a stock from when the market closes 3pm central to 830am central when it opens, and have a criteria of greater than 50,000 shares traded.
I'd also like to add to that scan to look for stocks up 4% or more in that same time.

 

[Joshua]

This should be both scans, the third combines them into one. Untested, typed here on the forum free hand, might be a dumb typo in there somewhere. Let me know if there are any issues. The 'scan' plot should be True within 1 bar when setting it up.

def isOpen = Between(GetTime(),RegularTradingStart(GetYYYYMMDD()),RegularTradingEnd(GetYYYYMMDD()));
def extVol = If !isOpen and isOpen[1] then Volume else if isOpen then Volume[1] else Volume[1] + Volume;
plot Scan = extVole >= 50,000;

///

def isOpen = Between(GetTime(),RegularTradingStart(GetYYYYMMDD()),RegularTradingEnd(GetYYYYMMDD()));
def PrevC = if !isOpen and IsOpen[1] then Close[1] else PrevC[1];
Plot Scan = if !isNaN(close) and isNaN(close[-1]) then ((Close - PrevC) / PrevC) * 100 > 4 else No;

///

def isOpen = Between(GetTime(),RegularTradingStart(GetYYYYMMDD()),RegularTradingEnd(GetYYYYMMDD()));
def extVol = If !isOpen and isOpen[1] then Volume else if isOpen then Volume[1] else Volume[1] + Volume;
def PrevC = if !isOpen and IsOpen[1] then Close[1] else PrevC[1];
Plot Scan =
if !isNaN(close) and isNaN(close[-1]) then
((Close - PrevC) / PrevC) * 100 > 4 AND extVole >= 50,000
else No;