**The 78.5% market-implied probability for “No” reflects the November 2025 breakthrough by Breaking Rust’s “Walk My Walk” remaining an isolated sales-chart outlier rather than the start of sustained momentum.** That track topped the Country Digital Song Sales chart through strong download numbers and TikTok virality, but subsequent AI releases have largely been confined to niche viral lists, iTunes rankings, or non-Billboard platforms without cracking airplay-driven or consumption-weighted tallies such as the Hot 100 or major genre charts. No credible reports have emerged of new AI tracks positioned for another #1 in the final weeks before the June 30 resolution, and the compressed timeline leaves little room for a late surge. Traders view the initial milestone as a novelty-driven sales spike rather than evidence of broader industry acceptance or consistent chart infrastructure for fully AI-generated material. With chart positions typically requiring weeks of accumulated streams, sales, and radio support, the absence of announced frontrunners or precursor buzz reinforces the consensus that another Billboard #1 is unlikely before the deadline.