I didn't even know that there was such a thing as activist short selling.

I just figured, hey, if I have something that's truthful, even if it's going to be

controversial, why can't I publish it?

And why can't I short it ahead of time as long as I just closed and I'm short.

Welcome to the Barron Streetwise Podcast. I'm Jack Howe. The voice you just heard, that's Carson Block.

He's a rare sort of investor called an activist shortseller.

That means he bets against stocks and then publishes his reasons which can persuade others causing the share prices to fall.

In a moment we'll update listeners on the hydrogen truckmaker Nicola,

hear more from Carson about the life of an activist shortseller and run through the

basics of how short selling works. What's a short squeeze? How about a

hypothesis agreement? Ever hear of naked shorting?

You will.

I'll try to keep it clean.

No promises.

Listening in as always is our audio producer Meta, hi Meta.

Hi, Meta. Hi, Jack.

Let's start our short selling conversation with a quick update on Nicola, which makes hydrogen

and electric big rig trucks and other vehicles and when I say makes I mean

Plans to one day produce but doesn't produce yet we had its founder and CEO Trevor Milton on this

podcast a few weeks ago. A shortseller called Hindenburg Research had

targeted the company with a report raising doubts about its hydrogen and

electric truck technology.

...