Costco Wholesale Corporation is a company in the U.S. stock market and it is a holding in 203 U.S.-traded ETFs. COST has around 33.5M shares in the U.S. ETF market. The largest ETF holder of COST is the SPDR S&P 500 ETF Trust (SPY), with approximately 5.11M shares. Investors may also find of interest that the ETF with the largest allocation to COST stock is Fidelity MSCI Consumer Staples Index ETF (FSTA), with a portfolio weight of 6.51%. On average, U.S. ETFs allocate 1.00% of COST to their portfolios.

Additionally, COST is a favorite stock for Vanilla and Multi-factor ETFs. It is also most likely to belong to Broad-based ETFs. The best-performing ETF in the past 12 months with COST as a holding is the ProShares UltraPro QQQ (TQQQ), with a return of 128.72%.