The script provides a way to compute ratio between two indexes (or stocks) of your choice, and paints a "up-arrow" below the first candle where and when the value of the ratio exceeds your threshold of choice. It also creates a table summarizing the value of your securities, and the value of the ratio below. The script will also alert you with a message (automatically) when the ratio of your security_1 and security_2 exceeds the ratio.