[CALENDAR UPDATE] US President will make an announcement at 13:00EDT/18:00BST and will deliver remarks in San Antonio at 19:00EDT/24:00BST on Wednesday

Bare calendar updates of this kind carry no content of their own; the tradable signal historically arrives only once the topic is trailed, and the pattern has been that staff brief the subject to wires shortly before delivery, often within the hour preceding. The venue and format offer the only clues at this stage: remarks split broadly between ceremonial or thematic appearances, which rarely reprice anything, and policy announcements, which do, and the gap between an early-afternoon announcement and evening remarks suggests two distinct events rather than one. Presidential announcements in recent years have ranged across tariffs and trade, sanctions, personnel, and energy, each with a different transmission channel, so speculation ahead of the topic has tended to produce noise rather than positioning. What resolves the uncertainty is the pre-briefing to the press pool and any flagged subject line in updated guidance; absent that, the note is a placeholder. The practical tell is whether market-sensitive agencies or officials are scheduled to appear alongside.