Taylor Swift’s “Patient Zero” holds overwhelming trader consensus at 96.3% implied probability for the Billboard Hot 100 dated October 10, driven by its explosive September 25 release as the lead single from *The Life of a Showgirl: The Encore*. The track shattered Spotify’s 2026 single-day streaming record for a female artist, topped U.S. iTunes and Apple Music charts immediately, and benefited from a high-profile music video premiere at the VMAs. This first-week data surge, combined with Swift’s history of debut No. 1s, underpins the strong market positioning. Realistic upset scenarios remain limited but could involve sustained radio airplay or sales momentum from current frontrunners like Ella Langley’s “Choosin’ Texas” or Morgan Wallen tracks if streaming velocity slows sharply before the tracking window closes.