jbyrne wrote:

Hi, I’m trying to make a simple screener that alerts me when a stock’s highest/lowest price in the first 1 hour of the day is at least 0.5% from the prev-day close and also down/up at 1% on prev-day close.

So 0.5% is +0.5% (not -0.5%)?

jbyrne wrote:

Hi, I’m trying to make a simple screener that alerts me when a stock’s highest/lowest price in the first 1 hour of the day is at least 0.5% from the prev-day close and also down/up at 1% on prev-day close.

Since you used AND, there’s no need to check +-0.5%, checking 1% will do both.

I tried to write this code, please test it and give me some feedback. I did not test it much:

ONCE DayLow    = 0
ONCE DayHigh   = 0
ONCE Hlow      = 0
ONCE Hhigh     = 0
ONCE HourStart = 090000

MyAlert = 0

timeframe (daily)
   DayHigh = Dhigh(0)
   DayLOw  = Dlow(0)
   
timeframe (1 hour)
   if time = HourStart then
      Hlow  = low
      Hhigh = high
	  MyAlert = (Hlow >= (DayHigh * 1.01)) OR (Hhigh <= (DayLow * 0.09))
   endif

timeframe (default)

SCREENER [MyAlert] (MyAlert as "Bull/Bear")

jbyrne wrote:

Hi, thanks for getting back to me. I just pasted your code into a new screener, and I get no new results; it still doesn’t work. I’m not sure what you mean by the following “Since you used AND, there’s no need to check +-0.5%, checking 1% will do both.” since the first hourly low/high being 0.5% from close is a key requirement, and I only want to be alerted once the stock has reached 1% from close. Maybe I misunderstood what you said, but it seems like theres some confusion I hope this clears any. Thanks in advance

Since you wrote “I only want to be alerted once the stock has reached 1% from close” you only need to check 1%, since it includes 0.5%.

Please attach a detailed example, you might use a spreadsheet to make it, with each candle tagged with the time it is formed.

I can’t understand why you drew a red circle below the red candle and the other one below the green candle by its side.

Now I got it!

I’ll try to arrange something tomorrow morning.

Try this one (I did not test it, though):

ONCE MaxPercent = 0.01
IF IntradayBarIndex = 0 THEN                           //Check the first hourly bar each day
   YesterdayClose = close[1]                           //Data from yesterday's last bar
   //   Bullish
   FirstHourHigh  = YesterdayClose * (1 + MaxPercent)
   //   Bearish
   FirstHourLow   = YesterdayClose * (1 - MaxPercent)
ELSE
   BullAlert = close >= FirsrHourHigh
   BearAlert = close <= FirsrHourLow
   MyAlert   = BullAlert OR BearAlert   
ENDIF
SCREENER [BullAlert OR BearAlert] (MyAlert as "Bull/Bear")

This will work on a hourly TF, to make it work on, say, 5min TF a bit more work is needed. If it works on an hourly TF we can further adapt it to other TFs.

Still, I have no idea what to do with 0.5%; it is useless, since you only want to be alerted when the price reaches +-1% (which is bigger than+-0.5%).

What I did not understand was  that 0.05% had to be -0.05% for BULLish setups and +0.05% for BEARish setups. Now it’s clear.

I hope it works as you asked (any feedback is always and highly welcomed):

ONCE MaxPercent             = 0.01
ONCE PreviousHighLowPercent = 0.005
IF IntradayBarIndex = 0 THEN                                                      //Check the first hourly bar each day
   YesterdayClose       = close[1]                                                //Data from yesterday's last bar
   //   Bullish
   FirstHourHigh        = YesterdayClose * (1 + MaxPercent)
   FirstHourMinimumLow  = low <= (YesterdayClose * (1 - PreviousHighLowPercent))  //true if low  <= -0.5% of the previuos day
   //   Bearish
   FirstHourLow         = YesterdayClose * (1 - MaxPercent)
   FirstHourMinimumHigh = high >= (YesterdayClose * (1 + PreviousHighLowPercent)) //true if high >= 0.05% of the previous day
ELSE
   BullAlert = (close >= FirstHourHigh) AND FirstHourMinimumLow
   BearAlert = (close <= FirstHourLow)  AND FirstHourMinimumHigh
   MyAlert   = BullAlert OR BearAlert
ENDIF
SCREENER [BullAlert OR BearAlert] (MyAlert as "Bull/Bear")