WaterStone Bank money market account interest rates and annual percentage yields (APY) vary dynamically based on prevailing Federal Reserve monetary policy, local banking competition, and specific tiered account balances. Because financial institutions update their promotional and standard deposit rates frequently to align with market liquidity trends, exact figures cannot be universally fixed. Depositors interested in current savings returns or minimum balance tiers required to avoid maintenance fees should consult the bank's official schedule of fees and rates directly.