PreMarket Gap from Previous Close for ThinkorSwim

[KELTON98]

Im looking for a study to identify stocks that have a price gap up from previous days close to current days open by a variable percentage.
Is there a study inside of Think or Swim for this or could someone provide a code for such?
Thanks!!

 

[XeoNoX]

Im looking for a study to identify stocks that have a price gap up from previous days close to current days open by a variable percentage.
Is there a study inside of Think or Swim for this or could someone provide a code for such?
Thanks!!

The Prior Close has changed by at least X(Percent) from todays open (both up/bullish and down/bearish). Set aggregation to DAY.
For regular trading hours only. Does not include extened hours

#The Prior Close has changed by atleast X(Percent) from todays open (both up/bullish and down/bearish)
#Set aggregation to DAY
#For regular trading hours only. Does not include extened hours
#### Change Percent "2.5" to desired percent value
def percent = 2.5;

def price = open;
def length = 1;
def x = 100*(price / price[length]-1);
plot scan = x >= percent or  x <= -percent;

 

[SmokeyDaBull]

is there a way to find gaps from previous day's high (and low) as opposed to previous day's close ? Thanks

did you find one you'd be willing to share?

Im looking for a study to identify stocks that have a price gap up from previous days close to current days open by a variable percentage.
Is there a study inside of Think or Swim for this or could someone provide a code for such?
Thanks!!

ToS has a built in scan for this if you simply want a gap on today's daily candle above or below a point on yesterday's daily candle.

Add Filter > Study > from the drop down box = Price Performance > Gap_UP or Gap_Down

 

[wvie2021]

Pre-Market Gap from Previous Close for ThinkorSwim - can't seem to work scanner not been able to work for me..

 

[MerryDay]

Pre-Market Gap from Previous Close for ThinkorSwim - can't seem to work scanner not been able to work for me..

Follow these directions?
https://usethinkscript.com/threads/pre-market-gap-from-previous-close-for-thinkorswim.892/#post-7266
And did this?
https://usethinkscript.com/threads/...revious-close-for-thinkorswim.892/#post-10505

 

[Stevengo]

OK, OK, I am an OCD programmer. I modified it slightly to make it a bit more gooder and you don't have to delete anything. Just set the inputs in your scan.

-------------------------------------------------------------------

input percentGap = 0.5;
input direction = {default Up, Down};

def dnColor = 5;    # red
def upColor = 6;    # green

def arrowColor;
def arrowDirection;

def marketOpen    = 0930;
def marketPreOpen = 0730;
def marketClose   = 1555;

def PrevClose = if SecondsTillTime(marketClose) == 0 and
                   SecondsFromTime(marketClose) == 0
                then close
                else PrevClose[1];
def ScanActive = if SecondsTillTime(marketOpen) >= 0 and
                    SecondsFromTime(marketPreOpen) > 0
                 then 1
                 else 0;
def ll = if ScanActive and !ScanActive[1]
         then low
         else if !ScanActive
         then double.nan
         else if ScanActive and low < ll[1]
         then low
         else ll[1];
def hh = if ScanActive and !ScanActive[1]
         then high
         else if !ScanActive
         then double.nan
         else if ScanActive and high > hh[1]
         then high
         else hh[1];

def isPlot;
def gapChange;

switch (direction)
{
    case Up:
        arrowColor = upColor;
        arrowDirection = PaintingStrategy.BOOLEAN_ARROW_UP;
        gapChange = 1.0 + (percentGap / 100.0);

        isPlot = if ScanActive and ll > PrevClose * gapChange
                 then 1
                 else 0;

    case Down:
        arrowColor = dnColor;
        arrowDirection = PaintingStrategy.BOOLEAN_ARROW_DOWN;
        gapChange = 1.0 - (percentGap / 100.0);

        isPlot = if ScanActive and hh < PrevClose * gapChange
                 then 1
                 else 0;
}

plot GapPlot = (isPlot == 1);

GapPlot.SetPaintingStrategy(arrowDirection);
GapPlot.SetDefaultColor(GetColor(arrowColor));

I tried running this scan, but I am not getting back any results. Essentially I am looking for any gap up or gap down, 100,000 in volume & above $10. Would be ideal for all this to be in one scan. I ran on 5min timeframe and I did see results, but not on daily. I added volume criteria and returned nothing. Hopefully someone can help. I

Thank you

 

[MerryDay]

I tried running this scan, but I am not getting back any results. Essentially I am looking for any gap up or gap down, 100,000 in volume & above $10. Would be ideal for all this to be in one scan. I ran on 5min timeframe and I did see results, but not on daily. I added volume criteria and returned nothing. Hopefully someone can help. I

Thank you

@Stevengo By definition, this is only an intraday indicator.

 

[motiba72]

hi,
I want to know if I can see in the pre-market gap up or down the percentage of the stocks ?
I can't see that before the market is open ? is there any formula ?
thanks
moti

 

[MerryDay]

hi,
I want to know if I can see in the pre-market gap up or down the percentage of the stocks ?
I can't see that before the market is open ? is there any formula ?
thanks
moti

I moved your post here. Try the study in the top post and read how other members are using it throughout this thread

 

[Stevengo]

hi,
I want to know if I can see in the pre-market gap up or down the percentage of the stocks ?
I can't see that before the market is open ? is there any formula ?
thanks
moti

Try this, it should answer what you are looking for.

http://tos.mx/bdHufEF

 

[bigmit2011]

Open gap up from previous day close on my watchlist scan
So I wanted to know how to write a script for Open that is a gap-up over previous day Close.
I wrote out this, but I am unsure.

plot scan = open > close[1]; (with aggreation as D)

 

[Haulin81]

Thank You all for these posts. I was able to get the premarket scanner to work! Can you please help me get a script to add to a custom column in the search results that will state the Gap% either up or down? I can then sort by the gap%. Thanks!

 

[MerryDay]

Thank You all for these posts. I was able to get the premarket scanner to work! Can you please help me get a script to add to a custom column in the search results that will state the Gap% either up or down? I can then sort by the gap%. Thanks!

The watchlist is the 2nd script in the 1st post of this thread

 

[Haulin81]

The watchlist is the 2nd script in the 1st post of this thread

Thanks MerryDay. But I tried that in premarket and in regular hours but in the column with the custom formula it returns the value: 9.22337203685477E16. It lists this for all stocks in my search results. I tried pasting all the formulas in this thread into my custom column (hoping to get lucky) but none of them returned the actual gap percentage.

 

[MerryDay]

Thanks MerryDay. But I tried that in premarket and in regular hours but in the column with the custom formula it returns the value: 9.22337203685477E16. It lists this for all stocks in my search results. I tried pasting all the formulas in this thread into my custom column (hoping to get lucky) but none of them returned the actual gap percentage.

You are right. That scripts seems to be fubar

 

[chrisj1881]

This indicator adds a custom column to your watchlist of stocks that show when a gap has formed on the daily chart.

• Red = Gap down
• Green = Gap up
• White = No gap

thinkScript Code

# Billy Bob's Better Gap Indicator for Column alert
input Detect_Gaps_By = {default "percent", "dollars"};
input Min_Gap_Size = 1.0;

# Define Candle Body
def bodyTop = Max(open, close);
def bodyBottom = Min(open, close);

# Define a gap and its direction
def MinGapSize;
switch (Detect_Gaps_By) {
case "percent":
MinGapSize = Min(close[1] * (Min_Gap_Size/100),5);
case "dollars":
MinGapSize = Min_Gap_Size;
};

def GapUp = bodyBottom - bodyTop[1] >= MinGapSize;
def GapDown = bodyTop - bodyBottom[1] <= -MinGapSize;

plot isGap = if GapUp then 1 else if GapDown then 2 else 0;
isgap.AssignValueColor(if isgap ==1 then color.green else if isgap == 2 then color.red else color.white);

AssignBACKGROUNDColor(if isgap ==1 then color.green else if isgap == 2 then color.red else color.white);

Shareable Link

https://tos.mx/wMCwUM
Credit:

• mtut

Hi, Can I request help with this code. I'm trying to get this column to show before/after market hours. I tried a couple of scenarios but could not get it working.

input closing_time = 1559;
input open_time = 0930;
input price = close;
input percent_change = 1.00;

def time_until_close = SecondsTillTime(closing_time);
def time_until_open = SecondsTillTime(open_time);
def closing_bell = time_until_close == 0;
rec closing_price = CompoundValue(1, if closing_bell then price else closing_price[1], price);
def after_closing_bell = time_until_close <= 0;
def before_opening_bell = time_until_open >= 0 ;
def afterhours_percent_change = 100 * (price / closing_price - 1);

input Detect_Gaps_By = {default "percent", "dollars"};
input Min_Gap_Size = 1.0;

# Define Candle Body
def bodyTop = Max(open, close);
def bodyBottom = Min(open, close);

# Define a gap and its direction
def MinGapSize;
switch (Detect_Gaps_By) {
case "percent":
MinGapSize = Min(close[1] * (Min_Gap_Size/100),5);
case "dollars":
MinGapSize = Min_Gap_Size;
};

def GapUp = (bodyBottom - bodyTop[1] >= MinGapSize) and afterhours_percent_change >= percent_change;
def GapDown = (bodyTop - bodyBottom[1] <= -MinGapSize) and afterhours_percent_change <= percent_change;

plot isGap = if gapUp then 1 else if gapDown then 2 else 0;
isgap.AssignValueColor(if isgap ==1 then color.green else if isgap == 2 then color.red else color.white);

AssignBACKGROUNDColor(if isgap ==1 then color.green else if isgap == 2 then color.red else color.white);

 

[MerryDay]

@bigmit2011 @chrisj1881

Start here: https://usethinkscript.com/threads/pre-market-gap-from-previous-close-for-thinkorswim.892/
There are 3 pages discussing pre-market gaps

 

[Haulin81]

Hello. I found Mobius's scan (script below). Can someone help me change it?
I want a gap scanner (yesterday's close to premarket price). I want to find stocks that Gap Up and down. I ran it during regular mkt hours and I get too many results. How can I modify this script?
Changes
#1. compare current close to yesterdays close. Current close should be up until the market opens at 9:30. So, after 9:30 the list becomes static it does not change.
#2. include stocks that are gapping up and down. it would be nice to have the ability to change the gap percentage threshold from 1% to 3% or any % i want to look for.

Thanks for any tips you can offer.
Here's the script.
# Premarket Scan
# Mobius
# Scan looks for premarket price to be above previous day close and premarket volume to be above 1000
def ExtHrs = getTime() >= RegularTradingEnd(getYYYYMMDD());
def c = if ExtHrs and !ExtHrs[1]
then close[1]
else c[1];
def isRollover = GetYYYYMMDD() != GetYYYYMMDD()[1];
def beforeStart = GetTime() < RegularTradingStart(GetYYYYMMDD());
def vol = if isRollover and beforeStart
then volume
else if beforeStart
then vol[1] + volume
else vol[1];
def PreMarketVol = if IsNaN(vol)
then PreMarketVol[1]
else vol;
plot scan = if between(c, 1, 100) and PreMarketVol > 1000 and close > c then 1 else 0;

 

[darkejo]

Hello. I found Mobius's scan (script below). Can someone help me change it?
I want a gap scanner (yesterday's close to premarket price). I want to find stocks that Gap Up and down. I ran it during regular mkt hours and I get too many results. How can I modify this script?
Changes
#1. compare current close to yesterdays close. Current close should be up until the market opens at 9:30. So, after 9:30 the list becomes static it does not change.
#2. include stocks that are gapping up and down. it would be nice to have the ability to change the gap percentage threshold from 1% to 3% or any % i want to look for.

Thanks for any tips you can offer.
Here's the script.
# Premarket Scan
# Mobius
# Scan looks for premarket price to be above previous day close and premarket volume to be above 1000
def ExtHrs = getTime() >= RegularTradingEnd(getYYYYMMDD());
def c = if ExtHrs and !ExtHrs[1]
then close[1]
else c[1];
def isRollover = GetYYYYMMDD() != GetYYYYMMDD()[1];
def beforeStart = GetTime() < RegularTradingStart(GetYYYYMMDD());
def vol = if isRollover and beforeStart
then volume
else if beforeStart
then vol[1] + volume
else vol[1];
def PreMarketVol = if IsNaN(vol)
then PreMarketVol[1]
else vol;
plot scan = if between(c, 1, 100) and PreMarketVol > 1000 and close > c then 1 else 0;

Did you ever figure this out?

 

[Haulin81]

Did you ever figure this out?

Not yet. I am still trying to refine a premarket gap scanner that will find stocks gapping up and down.