Money market funds are investment vehicles that invest in very short-term, low-risk assets with the aim of preserving capital, offering liquidity and generating a moderate return. They are often used as an alternative for parking liquidity or by conservative profiles, although they also have limitations that should be understood before investing.
Advantages of money market funds
Their main advantages are related to capital preservation, availability of money and lower volatility compared with other assets.
- Liquidity: they usually allow access to money with relative ease, which can make them useful for managing short-term cash needs or maintaining a liquidity cushion without leaving capital completely immobilised.
- Lower relative risk: by investing in assets with high credit quality and short maturities, money market funds usually have a lower level of risk than other investment products such as equities or longer-duration funds.
- Lower volatility: one of the characteristics of money market funds is that their value usually fluctuates less than that of other funds, making them a more stable option for those who prioritise capital preservation over seeking high returns.
- Diversification: by bringing together different short-term money market assets in a single product, they provide access to basic diversification that would be more difficult to replicate individually with small amounts.
Disadvantages of money market funds
- Limited return: their main drawback is that, in exchange for lower volatility and greater liquidity, their return potential is usually considerably lower than that of other assets such as equities or certain fixed-income funds.
- Loss of purchasing power: if the return obtained does not exceed inflation, the investor may preserve their capital in nominal terms but lose purchasing power in real terms.
- Fees and expenses: although they are usually simple products, it is worth reviewing management fees, depositary fees and other costs, since in low-return products these expenses can have a significant impact on net performance.
- Dependence on the interest rate environment: their appeal usually increases when interest rates are high, but may decline when rates fall, as the expected return of these funds also tends to decrease.
Money market funds can make sense for those who prioritise liquidity, stability and capital preservation over return. However, they are not the best alternative for every profile, especially if the objective is to grow wealth over the medium and long term. Therefore, before investing, it is worth assessing whether they fit as a liquidity tool within a broader strategy or whether there are other options better suited to the time horizon and level of risk that can be assumed.




