Berkshire Hathaway Inc. Class B is a company in the U.S. stock market and it is a holding in 159 U.S.-traded ETFs. BRK.B has around 106.3M shares in the U.S. ETF market. The largest ETF holder of BRK.B is the SPDR S&P 500 ETF Trust (SPY), with approximately 20.91M shares. Investors may also find of interest that the ETF with the largest allocation to BRK.B stock is Financial Select Sector SPDR Fund (XLF), with a portfolio weight of 13.99%. On average, U.S. ETFs allocate 1.76% of BRK.B to their portfolios.

Additionally, BRK.B 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 BRK.B as a holding is the Motley Fool 100 Index ETF (TMFC), with a return of 28.61%.