BlackRock's iShares platform has published an analysis of BlackRock's SGOV study, which reveals that holding large balances in traditional savings accounts can significantly reduce what these money can buy over time. The study compared the interest that everyday savers earn to the yields available on short-dated government debt, using fresh 2025 figures. It found that the typical saver earned less than a fifth of what was needed just to stay even. The report also highlighted the impact of inflation on money market funds and Treasuries, which tend to respond more closely to changes in short-term interest rates set by the Federal Reserve. Fidelity has warned against investing in 401(k) at an old job, and SGOV holds over $83 billion in assets and trades over $1 billion in shares each day.