How to Plot Bid/Ask Spread Percent (%) as an Indicator (Options)
You can now add the Bid/Ask* spread as an indicator for Option charts to see the history of the Bid/Ask movement in any time frame.
To plot this indicator for an option, make sure you have an option selected from your option chain. Click here for more on viewing option chains and charts.
There are two other ways to open the Add Plot menu. 1) Use the forward slash "/" hot key to add indicators; 2) Right-click anywhere on the chart and choose Add Plot from the drop down menu.
Click here for more about moving/arranging plots on your chart.
*All Bid/Ask/Mid spread plots, indicators, columns, etc., require the additional Real-time US Stock data feed for stocks and Real-time US Options data feed for Options.