NinjaTrader inactivity fee - What does "round trade" mean?

[Hong Nguyen]

I read the rule that:
"NinjaTrader does apply an inactivity fee and it is $25 per month if you log into the platform, but don't place any round trade."
Link:

https://brokerchooser.com/broker-reviews/ninjatrader-review/ninjatrader-fees

I don't understand the concept of "ROUND TRADE".
Does that mean I have to open at least 1 trade and close it in that month?

[NinjaTrader_JustinD]

Hello Hong Nguyen,

Thank you for using NinjaTrader.


Correct, a round-trip trade will be a trade that is fully opened and then closed on the account during that month - Account and Exchange Fees

Please let us know if you have any additional questions.