More on Align Technology (ALGN): Q4 beats on all counts on a rebound in demand for its Invisalign braces. Net profit fell 53% Y/Y however, burdened by heavy write-downs and other expenses, which masked overall revenue growth. For the current quarter, ALGN expects an EPS of $0.21 to $0.23 and revenue of $146M to $150.5M. Street estimates are for earnings of $0.26 cents on revenue of $145M. The company also says that CFO Kenneth Arola will step down as of March 4, and General counsel Roger George will serve as interim CFO while the company searches for a permanent replacement. Shares +8.6% AH.