Prothena Corp. Plc is a company in the U.S. stock market and it is a holding in 35 U.S.-traded ETFs. PRTA has around 2.6M shares in the U.S. ETF market. The largest ETF holder of PRTA is the SPDR S&P Biotech ETF (XBI), with approximately 639.13K shares. Investors may also find of interest that the ETF with the largest allocation to PRTA stock is Virtus LifeSci Biotech Clinical Trials ETF (BBC), with a portfolio weight of 0.76%. On average, U.S. ETFs allocate 0.05% of PRTA to their portfolios.
Additionally, PRTA is a favorite stock for Vanilla and Active ETFs. It is also most likely to belong to Broad-based ETFs. The best-performing ETF in the past 12 months with PRTA as a holding is the Virtus LifeSci Biotech Clinical Trials ETF (BBC), with a return of 48.93%.