Prediction Markets News Today 7/23: Big Brother, The Odyssey

Written By Justin Carlucci | Published at July 23, 2026
Actor Matt Damon takes photos with fans and signs autographs on the red carpet during the 103rd Indianapolis 500, Sunday, May 26, 2019. Indy 500 500festival Indycar Indy

We're back and looking at the best prediction markets news today on Kalshi! In this series, we won't necessarily stick to just sports. We'll look at all the markets trending for trades on Kalshi and put a little context behind each one. Let's dive into the action for July 23.

Prediction Markets News Today for July 23

Big Brother is trending, which must mean it's the middle of the week! Episode 7 of Big Brother Season 28 aired yesterday, and there's plenty of Big Brother action all week long since the show airs multiple times. It's arguably the most popular reality TV show in America, and it's held that spot for quite some time.

Naturally, Kalshi has a Big Brother Season 28 winner market pulling a ton of volume right now. We're still in the infancy stages of the season, but these things move quickly, with typically more than 30 episodes per run, so there's a mountain of drama and action still to come.

Dee Valladares currently holds the best chance on Kalshi. Here's how the top of the board is trading:

Those are pretty good prices across the board, and with a ton of season left, you don't want to miss the chance to jump in on this one.

Kalshi Entertainment: Best Picture Oscar Winner

Now the Oscars are trending on Kalshi, specifically the Best Picture winner market. The Odyssey is paving the way! The 99th Academy Awards are expected to be held in March 2027, so this is a long-term hold. However, the early money already has a clear lead dog in the race.

The Odyssey is clearly ahead of the pack, trading at Yes 53 cents. Here's how the contenders stack up:

The Odyssey, the 2026 film, was directed by Christopher Nolan and features a stacked cast including Matt Damon, Tom Holland, and Anne Hathaway.

Per IMDb, the story follows this: "After the Trojan War, Odysseus faces a dangerous voyage back to Ithaca, meeting creatures like the Cyclops Polyphemus, Sirens, and Circe along the way."

That's a wrap on today's top prediction markets. Good luck, and happy trading!