4% — Will Jay-Z attend Michael Rubin's annual White Party 2026 in 2026 Kalshi 4% · 4 contracts · $4K volume · medium confidence Updated 2026-07-13 04:26:24 UTC Why this matters: This probability reflects market expectations that Jay-Z will attend Michael Rubin's White Party in 2026, currently priced at 19% likelihood. The low probability may reflect Jay-Z's reduced public appearance frequency at celebrity events in recent years, his focus on business ventures and his Roc Nation company, or potential scheduling conflicts. Historically, attendance at the White Party has been selective among A-list figures, and past non-attendance by major celebrities has been common. The market will resolve uncertainty once the event occurs later in 2026 and official or credible reporting confirms guest lists. Key drivers include Jay-Z's travel schedule, his relationship with event host Michael Rubin, broader hip-hop community attendance patterns, and any public statements about his summer plans. Comparable uncertainty exists around other celebrities, with Meek Mill trading at 61% and Kevin Hart, Kendall Jenner, and others at 56%, suggesting varied confidence levels across the guest list. Key factors: - Jay-Z's historical attendance rate at celebrity social events has declined relative to earlier career periods - Michael Rubin and Jay-Z's professional relationship status and prior attendance history at the White Party specifically - The event date and timing relative to Jay-Z's known business commitments, tour schedules, or other public obligations in summer 2026 - Market pricing for comparable celebrities shows 56-61% probabilities, suggesting general uncertainty about attendance rather than certainty that Jay-Z is uniquely unlikely to attend - Official guest list confirmation or credible media reporting after the event occurs will definitively resolve the contract Contracts: - Will Beyoncé attend Michael Rubin's annual White Party 2026 in 2026?: Beyoncé — 5¢ Kalshi $2K (weight 44%) - Will Kevin Hart attend Michael Rubin's annual White Party 2026 in 2026?: Kevin Hart — 3¢ Kalshi $1K (weight 32%) - Will Joe Burrow attend Michael Rubin's annual White Party 2026 in 2026?: Joe Burrow — 3¢ Kalshi $688 (weight 16%) - Will Aaron Judge attend Michael Rubin's annual White Party 2026 in 2026?: Aaron Judge — 4¢ Kalshi $361 (weight 8%) --- ## 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: 2026-07-05T01:20:50.909Z* By SimpleFunctions — https://simplefunctions.dev/ Cite as: "4% per prediction markets (SimpleFunctions, July 2026)" Canonical: https://simplefunctions.dev/answer/whiteparty Full data: https://simplefunctions.dev/api/public/query?q=Will%20Jay-Z%20attend%20Michael%20Rubin's%20annual%20White%20Party%202026%20in%202026 Provider: SimpleFunctions — https://simplefunctions.dev