Ensco (ESV) stock had a really bad patch for three years. The stock fell almost 95% in 2015. The stock’s value fell 36% in 2016 and more than 39% in 2017. Ensco stock is finally trading in the green in 2018. As of July 24, Ensco has a YTD (year-to-date) return of 14.2%. The stock has risen 25% in the past year.