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4% price increase post-market

shakib3585

Active member
VIP
Hello,

Could anyone please help me with a TOS script that can identify stocks showing a 4% price increase during the post-market session, with the percentage increase calculated starting from the last one-hour bar during regular trading hours (RTH)? The scan is to be based on a 1-hour aggregation.

Thanks
 
Do you need to define a specific limit on what constitutes post-market hours, as in exclude any possible 24 hour trading beyond a certain time along with pre-market, or do you just mean extended hours in general?
 
This will run on any intraday aggregation with extended hours enabled, price is price. Hourly+ aggregations are generally the worst aggregations to use for time-sensitive scans.

It's "live" during post market hours. Then it remembers the reading of the last bar of post-market until the regular-hours close the next day, for review. I could also set it up to remember the largest post-market change, rather than the final post-market reading, if you need something like that.

You might want to drop the 4 to something lower just to test it.

Code:
input PostChange = 4;

def AggPer =
    GetAggregationPeriod();
def Clock =
    GetTime();
def Date =
    GetYYYYMMDD();;
def Begin =
    RegularTradingStart(Date);
def Finish =
    RegularTradingEnd(Date);
def PMFinish =
    RegularTradingEnd(Date) + (4 * 60 * 60 * 1000);
def isOpen =
    Between(Clock, Begin, Finish);
def isClosed =
    !Between(Clock, Begin, Finish);
def isPost =
    Between(Clock, Finish, PMFinish);
def isLastBar =
    Clock == (Finish - AggPer + 1)
    or (isOpen and isClosed[-1])
    or (isOpen and GetDay() != GetDay()[-1]);
def ClosingPrice =
    if isLastBar then Close else ClosingPrice[1];
def PMPrice =
    if isPost then Close
    else PMPrice[1];
def PostPctChange =
    if isLastBar then 0
    else (PMPrice - ClosingPrice) / ClosingPrice * 100;
plot Scan =
    PostPctChange >= PostChange;
 

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