Is there a reason TC shows Implied Volatility for some contracts while it's blank for some other contracts

Please take a look at March15 60 Puts on ICPT

Plot the Option volume under the chart and the Open interest. As you will see over 4K contracts traded yesterday and on the graph the open interest is at 5.3K but under the open interest column it shows 1.4K

The values of open interest indicator and column doesn't match  

I am showing 5.3k on both the chart and in the WatchList Column. Please contact technical support while you are experiencing the issue so they can attempt to troubleshoot it.

Ok thanks. It's after 5 so I guess tom 

Bruce,

Can we run screens on Options?

For ex: can I screen for options with Implied Volatility over 200%

Yes, if you have a WatchList containing options, you can check the Scan box to scan that WatchList.Options Implied Volatility is one of the available conditions to use in a scan.

Ok thanks

but this is symbol by symbol or can I scan an entire watch list of stocks 

Let's assume I have a watch list of 200 stocks 

I like to scan all option contracts on those 200 stocks expiring in the next 60 days with implied Vol > 200 

Options Implied Volatility isn't going to work on a WatchList which just contains stocks. It works on a WatchList which contains options.

You would need to create a Personal WatchList containing all of the options of interest to use as the basis of your scan.