PIMCO Funds High Yield Cl A (PHDAX) is a mutual fund that focuses on investing in high-yield bonds, also known as "junk bonds." These bonds typically have lower credit ratings and higher risk, but also offer the potential for higher returns. The fund is managed by PIMCO, a global investment management firm known for its expertise in fixed income investments. With a focus on high-yield bonds, PHDAX may be suitable for investors seeking higher potential returns and are willing to take on a higher level of risk.