Taylor Swift’s “Patient Zero” holds overwhelming market-implied odds at 95.8% to top the U.S. Spotify chart for the week ending October 9, driven by its record-breaking September 25 debut as the lead single from *The Life of a Showgirl: The Encore*. The track posted the biggest U.S. single-day streams of 2026 at over 6 million and has maintained the #1 daily position with more than 1.6 million streams, outpacing competitors by wide margins on both daily and weekly tallies. Sustained fan-driven streaming, coupled with the song’s placement atop global and U.S. charts since release, underpins trader consensus. An upset would require an unprecedented mid-week surge from a new release or a sharp drop in Swift’s engagement, scenarios that remain statistically remote given current momentum.