Marsh & McLennan Companies, Inc. is a company in the U.S. stock market and it is a holding in 193 U.S.-traded ETFs. MMC has around 41.6M shares in the U.S. ETF market. The largest ETF holder of MMC is the SPDR S&P 500 ETF Trust (SPY), with approximately 5.23M shares. Investors may also find of interest that the ETF with the largest allocation to MMC stock is Horizon Kinetics Inflation Beneficiaries ETF (INFL), with a portfolio weight of 2.99%. On average, U.S. ETFs allocate 0.48% of MMC to their portfolios.

Additionally, MMC 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 MMC as a holding is the iShares Morningstar U.S. Equity ETF (ILCB), with a return of 498.40%.