**The primary driver of trader sentiment on whether the Supreme Court grants certiorari in a sports event contract case by late 2026 is the emerging circuit split over federal preemption of state gambling laws.** The Third Circuit ruled in April 2026 that CFTC-registered platforms like Kalshi may offer contracts tied to sports outcomes as swaps immune from state enforcement, while the Ninth Circuit reached the opposite conclusion in a Nevada case weeks later. New Jersey filed the first certiorari petition in early September 2026, followed quickly by petitions from Robinhood and Crypto.com affiliates; Kalshi separately seeks en banc rehearing in the Ninth Circuit. The Supreme Court’s initial October 2026 docket omitted these matters, with responses due into November and conference consideration likely later in the term. Multiple overlapping petitions increase the chance of review, though the en banc process and standard timing for new filings create uncertainty around resolution before year-end.