Placing Options Orders Using The Underlying Stock Price In thinkorswim John May 12, 2020 14:05 Updated Click on this link to watch a video on how to place option orders based on the underlying market (e.g. stock) in TOS Related articles How do I get started at Base Camp Trading? Why does my thinkorswim chart look compressed after adding an indicator? My NT8 Machine ID has apparently changed. Do I need to reauthorize my indicators? Where are Base Camp Trading's Offices Located? Approximating Renko Charts in thinkorswim Comments 0 comments Article is closed for comments.