How can I create spread/ratio charts? Investing Support December 12, 2018 06:17 Updated Follow Unfortunately, our charting platforms cannot support spread/ratio charts at this stage. Related articles How do I change the times on the charts? Are technical indicators trading signals? How do I save a chart for future use? Historical Data On Charts How do I hide the event marks from the streaming chart? Comments 0 comments Please sign in to leave a comment.