Rare holiday where Canadian markets are trading and US closed

A few times a year there is a holiday in the US and Canadian markets are open. That makes for strange trading in USD/CAD from time to time.

In the past few minutes, USD/CAD jumped up to 1.3175 from 1.3155 as stops were run above Friday's highs.

Saudi Arabia is out with some comments saying production curbs could be ended in six months. That's not weighing on oil as much as I would expect but it could be boosting USD/CAD.