) are lower on the session by 0.51%, currently trading at $17.51. Put volume is currently running at 8.52x the average daily volume, with 77% of all puts traded being purchases on the offer. 1,593 put contracts have traded on the session, so far. Align Technology, Inc. designs, manufactures, and markets the invisalign system for treating malocclusion or the misalignment of teeth. Invisalign corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position.