How can I tell if my stock is halted on TWS?

You can add a "Halted" market data column to a Watchlist or your Portfolio page in TWS or Mosaic that will populate when a security is currently not trading due to a regulatory defined trading halt or from an exchange's temporary volatility halt.

See: How do I add a column to my TWS page?

Information regarding regulatory trading halts can be found on the SEC's website. Information regarding temporary trading halts can be found on the Nasdaq website.

Powered by IBot
How can I find the last trading day for an option?
How do I add a column to my TWS page?
Can I add a reference number so I can identify an order in TWS?