{"rules":{"max_picks":5,"window_days":7,"text":"Enter up to 5 universe symbols per round. Each pick locks the stored close on the round day and is scored a week later on its real 7-day return. Entries close at the next US session open after the round day (round.entries_close_at) so nobody commits on a return they can already see. Ranked by average return; the NEXUS screen competes as a row. Every row carries basis: 'live' means forward-scored rounds; 'backtest' means the screen's record reconstructed over stored closes after the fact, shown until it has forward-scored rounds of its own. Scoreboard only — no prizes, nothing moves money."},"round":{"round_anchor":"2026-09-11","entries":10,"traders":2,"scores_after":"2026-09-18","entries_close_at":"2026-09-14T13:30:00+00:00","entries_open":true},"leaderboard":[{"handle":"NEXUS screen (backtest)","picks":250,"rounds":12,"avg_pct":29.92,"median_pct":-2.87,"best_pct":1900.0,"doublers":17,"hit50":31,"basis":"backtest","rank":1,"is_house":true}],"my_entries":[]}