Yes, open positions are automatically carried over to the next trading day.

• Overnight Swap Fees:
  For most instruments, positions held overnight will incur a swap fee, which may be charged or credited depending on the position type (long or short).
• Futures Products:
  Futures positions do not incur overnight swap fees. However, rollover fees may apply on the rollover date. For more details, please refer to “What is Rollover?”

Carrying positions overnight allows you to maintain your trading strategy without closing your trades at the end of the day.