In an interview with the FT published on Monday, Gross argued that Trump's election would be more "disruptive" than a win for sitting president Joe Biden.

In particular, Gross, who is partly known as a co-founder of investment group Pimco, said that Trump's programs would "advocate continued tax cuts and more expensive things." However, he noted that Biden has overseen deficit spending worth trillions of dollars, the FT said.

Gross's comments come as Trump, a Republican, is attempting to persuade voters that he would boost the economy and financial markets more than the Democratic incumbent Biden.

Trump is currently leading Biden in polls both nationally and in major swing states that will likely influence the outcome of the election in November.