Differences in Orders filling between Sim and Real accounts

[dcheg]

Hello. I've found difference in orders filling prices between Ninja Trader Sim101 and my real brokerage account. I have some strategy, which trade on my real brokerage account and on Sim101 in same time.

There were trades on both accounts and you can see outcomes on attached picture.



How you can see these trades have same Stop Price and Time, but Filling Prices are not equal.
Why on the Sim101 account order filling price is lower then the stop price? How it's possible?

Thanks in advance.

[NinjaTrader_Bertrand]

That could be the case dcheg, the real order is filled according to the actual market dynamics experienced, while the other is simulated by our engine. It will attempt to replicate conditions dynamically, however it could not 'predict' what would exactly happen in an actual market trading live.

You place a Stop Market order here, so once triggered it would be a market order.