Down 53%, is it time to throw in the towel on CSL shares?

CSL Ltd (ASX: CSL) shares are enjoying a welcome day of outperformance today. Shares in the S&P/ASX 200 Index (ASX: XJO) biotech giant closed yesterday trading for $112.88. In morning trade on Tuesday, shares are changing hands for $113.38, up 0.4%. For some context, the ASX 200 is down 0.1% at this same time. I mention today’s outperformance as ‘welcome’ because, longer term, the ASX healthcare share has been having a tough time of it. How tough? Well, despite today’s uptick, shares remain down a steep 52.9% over the past 12 months. A capital loss that will have only been…