The primary risk lies in the precondition 'will the wedding happen?'. If no wedding occurs by Dec 31, 2026, all affirmative options resolve to 'No'. This effectively bundles a bet on the attendee list with a bet on the wedding date. Additionally, the definition of 'attendance' could face edge cases, such as guests attending only the reception but not the ceremony, though the rule specifies 'event' generally.

This is a typical celebrity gossip market. While the relationship between Taylor Swift and Travis Kelce is a major global topic, betting on the specific guest list for a wedding that hasn't even been confirmed represents a highly speculative, entertainment-focused niche, distinct from mainstream political or economic forecasting.

Apr 24, 2026 - Apr 26, 2026, Danielle Haim's price rebounded from 50c to 72c, and Gracie Abrams' price surged from 57.5c to 77.5c, correcting previous mispricing likely caused by thin liquidity. Apr 21, 2026 - Apr 24, 2026, Danielle Haim's price crashed from 76.5c to 50c, potentially due to a sudden liquidity drain from a large sell-off. Apr 21, 2026 - Apr 22, 2026, Brittany Mahomes' price dropped sharply from 82c to 63c, possibly due to a reassessment of her relationship with Taylor Swift or a single large sell order. Apr 15, 2026 - Apr 17, 2026, Alana Haim's price dropped sharply from 82c to 56c before quickly rebounding to 81c, highly likely a flash crash caused by a single large sell order that temporarily drained liquidity before being corrected by the market. Apr 09, 2026 - Apr 12, 2026, Sabrina Carpenter's price surged from 73c to 88.5c, as the market increasingly viewed her as a core inner-circle friend, causing her attendance probability to converge with the baseline wedding probability. Apr 04, 2026 - Apr 05, 2026, Alana Haim's price plunged from 81.5c to 55c, likely due to a liquidity vacuum caused by a single large sell order, creating a significant mispricing compared to the rest of the Haim sisters (subsequently recovered to 80.5c). Mar 26, 2026 - Mar 28, 2026, Phoebe Bridgers' price surged from 38.5c to 57c, as the market reassessed her attendance probability as a core musical collaborator after a brief undervaluation. Mar 25, 2026 - Mar 26, 2026, Este Haim's price rebounded from 64c to 74c, repairing the previous day's mispricing. Mar 24, 2026 - Mar 25, 2026, Danielle Haim's price rebounded from 60c to 74c, returning to the Haim sisters' group pricing consensus. Mar 19, 2026 - Mar 20, 2026, Brittany Mahomes, Este Haim, and Alana Haim experienced extreme volatility (Brittany jumped from 56c to 81c, Este from 50.5c to 74c, Alana from 56.5c to 78c). This was likely a rapid correction following a basket panic-sell (possibly due to a fake rumor) targeting the 'inner circle,' with the market repairing the mispricing within 24 hours. Mar 15, 2026 - Mar 16, 2026, Danielle Haim experienced severe volatility, crashing from 70c to 52.5c before rapidly rebounding to 73c, likely a flash crash caused by a single large sell order.