**Other Mommy** faces a fragmented market ahead of its October 9 wide release because pre-release tracking remains limited and competitive dynamics are fluid. Blumhouse and Atomic Monster’s supernatural horror entry, directed by Rob Savage and headlined by Jessica Chastain in a dual role, benefits from strong trailer engagement and the producers’ track record with mid-budget genre titles, yet lacks extensive preview data or critic reviews to anchor expectations. Comparable recent horror openings show wide variance depending on word-of-mouth momentum and screen counts, while this weekend’s slate introduces additional uncertainty around audience allocation. Traders appear to weigh the film’s established brand equity and Chastain’s draw against the typical volatility of October horror releases, producing closely bunched probabilities across the 21–33 million range. Final presales, early social metrics, and any last-minute marketing pushes will likely determine which bracket pulls ahead before the weekend numbers lock.