Historically, Trump's statements have been known to cause market volatility, but in this case, the lack of specific details makes it difficult to predict the impact on the stock market. The post's vagueness may lead to increased speculation and anticipation among investors, potentially causing minor fluctuations in the market. However, without concrete information, the overall effect is likely to be neutral. The market may remain cautious, waiting for the actual announcement to make any significant moves. The fact that Trump has a history of using his platform to make significant announcements could lead some investors to be on high alert, but others may be desensitized to his teasers, leading to a mixed reaction. Overall, the post's impact on the stock market is uncertain and will depend on the content of the upcoming announcement.