The White House communications office typically calls a full lid once the president’s public schedule ends and no further announcements or events are anticipated that day, a determination shaped by the daily briefing rotation, travel plans, and any late-breaking developments. During the May 11-16 window, lighter weekend patterns and events such as the hosting of national champions aligned with earlier closures on several days, while midweek legislative or executive activity can extend the news cycle past 6:30 PM. Traders weigh these routine calendar factors against the potential for unplanned statements or foreign policy updates that would delay a lid, consistent with historical patterns in which weekends and lower-profile periods produce faster resolutions.