REGN Backtesting REGN is one of several active short trades offering an objective entry or add-on while backtesting the recently broken uptrend line. 2017-03-08T21:21:21-05:00Sep 3, 2013 12:44pm|Categories: Completed Trades - Short|Tags: REGN|Comments Off on REGN Backtesting Share this! (member restricted content requires registration) FacebookXRedditLinkedInTumblrPinterestVkEmail