Scan for Stocks Above/Below Pre-Market in ThinkorSwim

[BigKrud]

Hey guys, this is my first post here. The information you can find on this forum is so unbelievably valuable and I've learned so much already from exploring all the different strategies and testing out different indicator combinations myself (with a good amount of success). I can't thank everyone enough who posts here, it's an amazing resource.

One thing I couldn't find when I was digging around, however, was a simple custom scan to add to scan queries that looks for stocks Above their Pre-Market High level. I use this for day trading and swing trading to find stocks that tend to break above these levels and continue their trend throughout the morning or into the next day.

I changed the bottom few lines so that it can be used for scans.

Here is the code:

#pm_high_low


input alertPeriodStart = 930;
input alertPeriodEnd = 1130;
input alertOnBreak = no;
input alertOnPullBack = no;
input numberOfDays = 2;
input numberOfYears = 0;


def okToPlot = GetLastDay() - numberOfDays <= GetDay() and GetLastYear() - numberOfYears <= GetYear() ;

def startCounter =  SecondsFromTime(alertPeriodStart);
def endCounter = SecondsTillTime(alertPeriodEnd);

def alertPeriod = if startCounter >= 0 and endCounter >= 0 then 1 else 0;

def regularSessionHours = RegularTradingStart(GetYYYYMMDD()) <= GetTime();
def extendedSessionHours = RegularTradingStart(GetYYYYMMDD()) >= GetTime();

def extendedSessionStart = regularSessionHours[1] and extendedSessionHours;
def regularSessionStart = extendedSessionHours[1] and regularSessionHours;

def extendedSessionHigh = CompoundValue(1, if extendedSessionStart then high else if extendedSessionHours then Max(high, extendedSessionHigh[1]) else extendedSessionHigh[1], high);

def extendedSessionLow = CompoundValue(1, if extendedSessionStart then low else if extendedSessionHours then Min(low, extendedSessionLow[1]) else extendedSessionLow[1],low);

def regularSessionHigh = CompoundValue(1, if regularSessionStart then high else if regularSessionHours then Max(high, regularSessionHigh[1]) else regularSessionHigh[1], 0);

def regularSessionLow = CompoundValue(1, if regularSessionStart then low else if regularSessionHours then Min(low, regularSessionLow[1]) else regularSessionLow[1], 0);


plot overnightHigh = close > extendedSessionHigh;

#plot overnightLow = close < extendedSessionLow;

If you're looking for stocks that are Below the Pre Market Low level, just switch the hashtag on the last two lines.

 

[BenTen]

Thank you for sharing. Welcome to our community

 

[tomsk]

If anyone is having a go at decoding the actual times that extended session hours entails, here is a quick way to determine that.
Run the following code on a 1 minute chart of /ES. You will see visually those timeframes.
This is the best way of making sure you're looking at the correct time bracket.

declare lower;
plot extendedSessionHours = RegularTradingStart(GetYYYYMMDD()) >= GetTime();

 

[Big Ed]

thank you for sharing. I'm having issues where I'm still getting alerts after market has closed. From what is see it's only supposed to be active from 930am to 1130am EST. Any idea how I can fix this?

 

[XeoNoX]

thank you for sharing. I'm having issues where I'm still getting alerts after market has closed. From what is see it's only supposed to be active from 930am to 1130am EST. Any idea how I can fix this?

just TD Amertirade glitch (late alerts) or its your phone carriers sms/text sending/receiving late. nothing you can do, ill get alerts on the weekends even sometimes.


just add another watchlist and and whatever scans you want to it. The alerts come from the watch list, which the watchlist is based of whatever scan or scans you choose for that particular watchlist.

 

[Big Ed]

so the alerts all of a sudden started working today but like you said they are delayed so it just defeats the whole purpose of breaking the pre market high for me to get in for momentum play. that delay is not gonna cut it. I just have to fix the alert for the chart indicator I guess and just put 18-20 stocks on the charts and go from there. Now I have to figure out why the alerts on the charts are not working

 

[XeoNoX]

correct, its why i would recommend for you to scan for when price is within XYZ% of the premarket high
that way you can see the tickers that are getting close to the premarket high live from the watchlist.