Merck & Co., Inc. is a company in the U.S. stock market and it is a holding in 248 U.S.-traded ETFs. MRK has around 171.8M shares in the U.S. ETF market. The largest ETF holder of MRK is the SPDR S&P 500 ETF Trust (SPY), with approximately 29.00M shares. Investors may also find of interest that the ETF with the largest allocation to MRK stock is First Trust Nasdaq Pharmaceuticals ETF (FTXH), with a portfolio weight of 7.78%. On average, U.S. ETFs allocate 1.27% of MRK to their portfolios.
Additionally, MRK is a favorite stock for Multi-factor and Vanilla ETFs. It is also most likely to belong to Broad-based ETFs. The best-performing ETF in the past 12 months with MRK as a holding is the ProShares UltraPro Dow30 (UDOW), with a return of 22.62%.