How can I create spread/ratio charts? Investing Support February 16, 2018 08:18 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? Historical Data On Charts How do I save a chart for future use? How do I hide the event marks from the streaming chart? What kind of charts does Investing.com provide? Comments 0 comments Please sign in to leave a comment.