...NEW YORK (S&P Global Ratings) March 13, 2019--S&P Global Ratings today said it assigned its 'AAAf' fund credit quality rating (FCQR) and '##' fund volatility rating (FVR) on the City of Miami Beach Investment Program. An FCQR of 'AAAf' signifies that the credit quality of the City of Miami Beach's investment portfolio exposure is extremely strong. The '##' FVR signifies that the portfolio exhibits low volatility of returns comparable to a portfolio of short-duration government securities, typically maturing within one to three years and denominated in the base currency of the fund. The City of Miami Beach has maintained an investment policy governing the investment of the city's internal funds for more than 23 years. The policy establishes the framework for the city's investment activities to ensure effective management of the city's funds. The primary objectives of the city's investment program are safety of capital, liquidity of funds, and return on investment. The City of Miami Beach...