BTC price experienced slight fluctuations over the weekend but ultimately traded exactly at the CME closing price on Friday when the market reopened on Monday.

Weekends like this often present good opportunities for swing trading/day trading. 9/10 times, the price will return to that point within the first few hours after the futures market reopens. So, it's a pretty good trade if there is significant volatility like this weekend.
In rare cases where the price gaps and does not immediately fill the gap, that's when your risk management skills make a difference :)