No confirmed engagement between Cardi B and Stefon Diggs has materialized through the first seven months of 2026 despite their ongoing relationship, which explains the market-implied 55.8% probability on the No side. Diggs publicly teased a potential proposal tied to a Super Bowl win in February, yet no ring or announcement followed, while recent social media speculation around a quickly deleted Instagram Story remains unverified and has not shifted trader consensus. Relationship volatility, including prior paternity disputes and limited public momentum, continues to weigh against a 2026 timeline, with historical patterns showing celebrity engagements often require clearer public signals or major life events to materialize. Traders appear focused on the absence of guild-level confirmation or sustained promotional activity as the decisive factor heading into the year's second half.