Script Misses Entry at 8:30 Open

[RDPoS]

I have an automated strategy based off of the ChandelierSAR for short trades, that automatically enters a short trade at 8:30AM (when the market opens) if the indicator is higher than the current market position as shown below.



It seemed to work fine on a 233-tick chart but does not enter on the 377-tick chart shown below.



You can see from the chart that it worked fine later on. It isn't because there are no 8:30AM tick bars either, there are three of them.

8:27
8:29
8:30
8:30
8:30
8:31
8:31
8:32

What is the deal? It works on one chart and not another? I am stumped.

The Strat and Indicator are attached.

[NinjaTrader_RyanM1]

Hello RDpos,

Thank you for your post.

ToTime() returns an integer representing time including seconds. A bar would have to end at 8:30:00 for your condition to be true. This happens all the time on minute bars but not so often on ticks bars.

Add this statement and view the output window:

Print (ToTime(Time[0]));

You can then see how the bar stamps are represented as an integer.

Try this to capture the whole minute:

 
if (ToTime(Time[0]) >= ToTime(8, 30, 0) && ToTime(Time[0]) <= ToTime(8, 30, 59 ))

[RDPoS]

Thanks Ryan, I did an analog in the strategy wizard by changing to

ToTime(Time[0]) > ToTime(8,29,0)
ToTime(Time[0]) < ToTime(8,31,0)
DefaultInput[0] < Chandelier....

The only problem now would be an inactive market where no 377-tick bar is completed between 08:30:00 and 08:30:59. Is there a way to account for that intrabar? That problem would be much more prominent at 610-tick or higher tick charts.

[NinjaTrader_RyanM1]

Yes, that should work when creating it with the condition builder.

You can use:

if (Bars.BarsSinceSession == 0)

This should be the first bar of the day regardless of the timestamp.

Session times are defined in the Chart Properties.

http://www.ninjatrader-support.com/HelpGuideV6/BarsSinceSession.html