**Trader consensus on "Other Mommy"'s opening weekend reflects pre-release tracking estimates of $15M–$25M, with the tightest implied probabilities clustering in the low-to-mid $20Ms.** Blumhouse and Universal's supernatural horror, directed by Rob Savage and starring Jessica Chastain in a dual role, benefits from strong trailer buzz—including memorable jump scares that generated significant social media attention when attached to major releases—and the studio's October horror track record. Comps such as Smile 2 ($23M) and Black Phone 2 ($27M) anchor expectations, while limited competition from lower-profile titles like The Social Reckoning supports a solid debut. Key swing factors include final presale data, review reception, and word-of-mouth potential ahead of the October 9 wide release.