What's going to make your portfolio rise the most this fall? Four of our top columnists talked live for one hour Wednesday to offer up their best investing advice for September.

Stocks expert Stephen "Sarge" Guilfoyle, bond columnist Peter Tchir, forex trader Douglas Borthwick and gold expert David Yoe Williams talked Donald Trump, Janet Yellen, Apple (AAPL - Get Report) and more.

You can watch a full replay of the roundtable above. Or, read up on the latest investing recommendations from our "Fab Four" and other great experts below:

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This article was written by a staff member of TheStreet.