I fully funded my Roth but I want to DCA over the first few months of 2025 into the S&P (that's my investment of choice). What should I do with my uninvested cash while it waits to get invested? Should I just dump it all into the etf and not DCA, is there a money market ETF that the money can earn interest on etc? Should I just have left the money in my hysa and transfer it over as I'm ready to invest? Thanks in advance.