A fund managed by US-based Fidelity has marked up the valuation of omnichannel eyewear retailer Lenskart by over a fifth to $6.1 billion at the end of April 30, according to a monthly portfolio holdings update by the financial services major.This marks a 21% increase of the company’s fair value in Fidelity’s books compared to the $5 billion valuation at which it acquired the shares in June 2024 during a secondary transaction that also saw Singapore's Temasek join Lenskart's roster of blue-chip investors.Crossover funds such as Fidelity, which invest both in publicly traded and privately held companies, periodically review the valuation of their portfolio companies.To be sure, the fair value of a company is ascertained on the basis of a number of factors, including financials shared wit