Rollover dates for GC,SI, ZC and ZS

[Chuso]

Hello, I want to know when is the correct day to rollover these futures:
GC, SI, ZC and ZS.

Thanks.

[NinjaTrader_Bertrand]

Chuso, welcome to our forums - first of all you can take a look at the preset NT rollover dates for the continuous contracts we create. Those can be found under Tools > Instrument Manager for each master instrument in the misc > contract months section when you edit the instrument.

For finetuning when exactly to roll, it would be best to monitor the current and next expiry in your Market Analyzer though - here you can see via the DailyVolume column when the majority of volume has rolled forward.

[Chuso]

Well I meant the rules to roll, for example last ZS roll Ninjatrader says 31/12 and the volume changed on 21/12, so maybe is 10 days before of the last day of the previous settletemnt month?
If I have a system working I can´t be guessing when to roll.

Regards.

[NinjaTrader_Bertrand]

For the most contracts the exact date to rollover cannot be 'predicted' down to the day, if you would want to roll earlier as we set it you can definitely do that, the rollover dates themselves can be fully edited and thus customized the way you want. When you trade your strategy, you would monitor volume for the different expiries and then make a decision when to roll to a new front month.