31% — Will Bruno Mars be the #1 most streamed Artist on the 2026 Spotify Wrapped Top 10 Artist U.S chart on the date that the chart is released for 2026 Kalshi 31% · 3 contracts · $2K volume · medium confidence Updated 2026-09-20 22:02:10 UTC Why this matters: This represents the estimated likelihood that Bruno Mars will be the most-streamed artist in the United States when Spotify releases its 2026 Wrapped rankings, typically in early November. At 30%, Bruno Mars is priced as a significant contender but behind Drake (77%) and well ahead of Taylor Swift (7%) and Bad Bunny (4%) in the current market assessment. The probability reflects Bruno Mars' historical streaming performance relative to other major artists, though the final outcome depends heavily on release schedules over the next three months—any major album or single release from Bruno Mars or competing artists could shift market expectations substantially. The resolution occurs when Spotify publicly announces the 2026 Wrapped rankings in November 2026, making streaming volume through October the decisive period. Key factors: - Bruno Mars' 2026 streaming trajectory through October compared to Drake, Taylor Swift, and Bad Bunny, particularly any new releases or touring announcements - Drake's historically dominant position in U.S. streaming but vulnerability if no major releases land in late 2026 - The timing and impact of any album or extended project releases from major artists between now and October 2026 - Historical consistency of Spotify's top-streamed artist rankings and whether incumbent leaders maintain dominance year-over-year - Whether Bruno Mars' catalog continues current streaming velocity or experiences decline/resurgence based on playlist positioning and cultural relevance Contracts: - Will Taylor Swift be the #1 most streamed Artist on the 2026 Spotify Wrapped Top 10 Artist U.S chart on the date that the chart is released for 2026?: Taylor Swift — 6¢ Kalshi $1K (weight 54%) - Will Drake be the #1 most streamed Artist on the 2026 Spotify Wrapped Top 10 Artist U.S chart on the date that the chart is released for 2026?: Drake — 84¢ Kalshi $842 (weight 37%) - Will Bruno Mars be the #1 most streamed Artist on the 2026 Spotify Wrapped Top 10 Artist U.S chart on the date that the chart is released for 2026?: Bruno Mars — 4¢ Kalshi $192 (weight 9%) --- ## Methodology SimpleFunctions aggregates live YES-side prices from Kalshi and Polymarket contracts bound to this question. For binary topics the headline is the liquidity-weighted mid-price (weight = log(1 + 24h volume) × freshness, where freshness is 1.0 if updated <24h, 0.7 if <7d, 0.4 otherwise). For multi-outcome (winner-take-all) topics the headline is the current leader's price — disjoint outcomes are never arithmetically averaged. Snapshots refresh every 5 minutes during market hours. ## SF Signal - SF Index, regime, and 30d Brier calibration are computed separately and surfaced at https://simplefunctions.dev/admin/calibration. - No SimpleFunctions index / regime / calibration signal is bound to this topic yet — the headline above is market-derived only. --- *Last verified: 2026-09-20T21:20:51.183Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "31% per prediction markets (SimpleFunctions, September 2026)" Canonical: https://simplefunctions.dev/answer/topartistusa Full data: https://simplefunctions.dev/api/public/query?q=Will%20Bruno%20Mars%20be%20the%20%231%20most%20streamed%20Artist%20on%20the%20%202026%20Spotify%20Wrapped%20Top%2010%20Artist%20U.S%20chart%20on%20the%20date%20that%20the%20chart%20is%20released%20for%202026 Provider: SimpleFunctions — https://simplefunctions.dev