Hi all, I am back after a long break. Chatgpt got me interested back into experimenting with strategies. It makes starting up a workflow so much more easier.

Here’s a simple strategy I asked it to make with Nichola’s prompt(with many thanks)

Seems to do pretty well. Alteast to help in formalising the initial strategy

defparam cumulateOrders = false
defparam flatafter = 235959  // Prevent any overnight trades

// Define opening period
startHour = 80000  // DAX opens at 8:00 local time
endHour = 110000  // Ends at 11:00 local time

// Variable to keep track of the high and low since 1am
once highestSince1am = high
once lowestSince1am = low

// Update the high and low since 1am every bar
if time >= 10000 and time < startHour then
highestSince1am = max(highestSince1am, high)
lowestSince1am = min(lowestSince1am, low)
endif

// If current time is within the opening hours and price crosses over the highest price since 1am, then buy
if time >= startHour and time <= endHour and close > highestSince1am then
buy at market
set stop ploss abs(low[1]-close) / pointsize
set target pprofit 50 * pointsize
endif

// If current time is within the opening hours and price crosses under the lowest price since 1am, then sellshort
if time >= startHour and time <= endHour and close < lowestSince1am then
sellshort at market
set stop ploss abs(high[1]-close) / pointsize
set target pprofit 50 * pointsize
endif

// Reset the highest and lowest variables for the next day
if time >= 235959 then
highestSince1am = high
lowestSince1am = low
endif

This was my initial ask –
Code me a strategy for DAX in the 5 min timeframe. During the opening 3 hours buy when price crosses over the highest price since 1am and vice versa for sell. Profit target is 5pips and stop loss is the low of the previous bar

I had to correct it a few times by saying for eg –
– there is no when function, recode the dax strategy
– this code does not work

I think we can make the prompt better by giving it most commonly used functions and a few simple examples.

Still testing

this is what it gave me initially –

defparam cumulateOrders = false
defparam flatafter = 235959  // prevent any overnight trades
TimeFrame = 5

// define opening period
startHour = 080000  // DAX opens at 8:00 local time
endHour = 110000  // ends at 11:00 local time
priorHour = 010000 // 1:00 am as per your request

// variables for highest price and lowest price since 1 am
highestPrice = max[BarIndex](high) when time >= priorHour and time < startHour
lowestPrice = min[BarIndex](low) when time >= priorHour and time < startHour

// if current time is within the opening hours and price crosses over the highest price since 1am then buy
if time >= startHour and time <= endHour and close crosses over highestPrice then
    buy at market
    set stop ploss abs(low[1]-close) / pointsize
    set target pprofit 5 * pointsize
endif

// if current time is within the opening hours and price crosses under the lowest price since 1am then sellshort
if time >= startHour and time <= endHour and close crosses under lowestPrice then
    sellshort at market
    set stop ploss abs(high[1]-close) / pointsize
    set target pprofit 5 * pointsize
endif

I asked ChatGPT  “I want sell when the price is 20% above the startpoint” and listed my code and got my result. I then asked “can I improve the macd” I was given a few improvements to my code and the end result. I then asked “show me code for divergence analysis” based on one of the end results. I cleaned up the code and listed below. I’ll back test and test on demo this week.

// Definition of code parameters
DEFPARAM CumulateOrders = False // Cumulating positions deactivated

// Calculate MACD values
MACDLinePeriods = 12
SignalLinePeriods = 26
MACDAveragePeriods = 9

MLine = MACDline[MACDLinePeriods, SignalLinePeriods, MACDAveragePeriods](close)
SignalLine = MACDSignal[MACDLinePeriods, SignalLinePeriods, MACDAveragePeriods](close)

// Calculate price and MACD divergence
PriceDivergence = close - MACDLine

// Conditions to enter long positions
Indicator1 = SignalLine
Indicator2 = MLine
Indicator3 = (Indicator2 CROSSES OVER 0)
DivergenceCondition = (PriceDivergence[1] < 0 AND PriceDivergence > 0)

c1 = (Indicator1 < Indicator2)
c2 = Indicator3
StartPoint = TRADEPRICE

IF c1 AND c2 AND DivergenceCondition THEN
BUY 1 CONTRACT AT MARKET
set stop ploss abs(low[1]-close) / pointsize
set target pprofit 50 * pointsize
ENDIF

// Conditions to exit long positions
Indicator4 = MACD CROSSES UNDER 0[3]
ExitCondition = (PriceDivergence[1] > 0 AND PriceDivergence < 0)

c3 = (Indicator1 > Indicator2)
c4 = Indicator4
c5 = (close >= StartPoint * 1.2) // Price is 20% above the trade price
DivergenceExitCondition = (c4 OR c5) AND ExitCondition

IF c3 AND DivergenceExitCondition THEN
SELL AT MARKET
set stop ploss abs(high[1]-close) / pointsize
set target pprofit 50 * pointsize
ENDIF

indeed I.A allows to progress the personal coding, on the other hand I am surprised that the remarks which are made to him on the errors start again the next day. it doesn’t seem to save corrections or bad elements from languages outside of PRT.

I made an algo today, approximately 6 months after making my first algo with ChatGPT. I used the prompts provided here in the forum thread, but it’s still not really making plug-and-playable code for ProRealTime.
The first issue with ChatGPT was that it insisted to use underscores in the variable names, which is not accepted by ProBuilder language. I think it’s an easy instruction to add – but I have also noticed that ChatGPT seems to have issue when providing too many instructions.

Here’s the video of me making it and the full code it generated.
https://youtu.be/YciwTN4ZquU

Here’s the full code

defparam cumulateorders = false

// Define RSI parameters
RSIPeriod = 2
RSIOversold = 15
RSIOverbought = 20

// Calculate RSI
RSIValue = rsi[RSIPeriod]

//Day-of-the-week filter
DayOfWeekFilter = dayofweek
FilterDay = 5 // Friday

// Monthly filter

if month = 0 or month = 1 or month = 2 or month = 3 or month = 4 or month = 10 or month = 11 or month = 12 then
LongMonths = 1
else
LongMonths = 0
endif

if month = 5 or month = 6 or month = 7 or month = 8 or month = 9 then
AvoidMonths = 1
else
AvoidMonths = 0
endif

// Entry condition
if RSIValue crosses under RSIOversold and DayOfWeekFilter = FilterDay and Longmonths then
buy at market
endif

if RSIValue crosses over RSIOverbought and DayOFweekFilter = Filterday and not AvoidMonths then
sell at market
endif

Thank you Nicholas for this post, it’s just incredible and all informations shared here are just real gold mine. I’m starting my own test to improve my own PRC strategies ! I will probably share my feedback in future.

What part of the above code (if any?) was provided by ChatGPT?

If you use the Insert PRT Code button (far right top line above each new message – blue button) then Line Numbers will show in posted code … makes it easier for us all. 🙂