The SEC reports that the popularity of and investments in money market funds has grown significantly and they currently hold about US$3 trillion in assets. They have become one of the core pillars of the present-day capital markets as they offer investors a diversified, professionally managed portfolio with high daily liquidity. Many investors use money market funds as a place to "park their cash" until they decide on other investments, or for funding needs that may arise in the short term. Fund yields are typically somewhat higher than bank savings accounts, but of course these are different products with differing risks (e.g., money fund accounts are not insured and are not deposit accounts). Since Retail funds generally have higher servicing needs and thus expenses than Institutional funds, their yields are generally lower than Institutional funds. Perks: One of the biggest perks you'll find with TIAA Bank is its "Yield Pledge," which maintains that its yield pledge money market account rate will always be competitive and in the top 5 percent. Its money market account also has no monthly fee, allows for mobile check deposits and is IRA-eligible. As long as you keep at least $5,000 in your yield pledge money market account, TIAA Bank will reimburse all ATM fees charged by other banks. Regardless of your balance, you’ll be reimbursed up to $15 for ATM fees incurred by using non-TIAA Bank ATMs. The money market consists of financial institutions and dealers in money or credit who wish to either borrow or lend. Participants borrow and lend for short periods, typically up to twelve months. Money market trades in short-term financial instruments commonly called "paper". This contrasts with the capital market for longer-term funding, which is supplied by bonds and equity.