Cathie Wood’s ARK ETF has made some recent changes in its focus by purchasing stocks in RBRK and RXRX. Wood, known for her successful investing strategies, has decided to add these stocks to her portfolio. The move is part of ARK ETF’s ongoing efforts to diversify and stay ahead in the market. Wood’s decision to invest in RBRK and RXRX reflects her confidence in the potential growth of these companies. Investors are keeping a close eye on ARK ETF’s moves as they continue to make waves in the investment world.