GameStop (GME) shares surged as high as 75% after Monday's market open before calming ahead of the closing bell. What exactly brought on this second rally in the past month for the meme stock? Meme trader "Roaring Kitty" — the username of Keith Gill on X (formerly Twitter) — shared a screenshot of his investment portfolio revealing $175 million in GameStop shares and options trades. The legitimacy of this photo has yet to be verified.

Susquehanna Co-Head of Derivative Strategy Chris Murphy joins Yahoo Finance's Market Domination to talk about whether investors could have anticipated this jump in GameStop stock, including from options traders.

"There's no real story, there's no real event. You can kind of see that information out there. Obviously... we weren't expecting it to be a specific person, but you can see these trades. It's a listed market every option trade that trades is accounted for and you can see it after the fact," Murphy says. "That's why this, trading options is challenging. But this information was out there in the world, just not who it was."

For more expert insight and the latest market action, click here to watch this full episode of Market Domination.

This post was written by Luke Carberry Mogan.