Pacific Investment Management Co, which is known as Pimco and is a unit of Germany's Allianz SE, said the Pimco Total Return Fund increased its holdings in U.S. government-related securities to 19.6 percent in June, up from 8.5 percent in May.
In the context of the input sentence, determine the relationship between 'Pimco' and 'Investment Management'.
Options: position held, operator, product/material produced, original broadcaster