It's an excellent opportunity to buy shares of what could become a biotech giant on the dip.In the past three years, CRISPR Therapeutics (CRSP -0.33%) has made tremendous progress. It was still a clinical-stage biotech in 2021, but it now has a gene-editing therapy that is approved in multiple countries. However, this regulatory milestone hasn't been accompanied by a strong stock market performance. CRISPR Therapeutics has significantly lagged the market since 2021.What is going on with this gene-editing sp ...