1. The author upgrades SGOV to a 'strong buy' due to its better trade-offs for cash compared to CDs in the current rate environment; 2. SGOV offers stability and liquidity with a forward yield of 5.10%, making it a preferable option over CDs; 3. CDs present reinvestment risks, especially if rates drop significantly, but SGOV mitigates this risk with its flexibility and liquidity.