• Boeing received a big jet order from China.
• The order was not big enough to satisfy investors.
• Boeing stock declined after the announcement.
• The order was seen as a result of the summit between President Trump and China's leader Xi Jinping.

This development may indicate that Boeing's reliance on large orders from countries like China could be a double-edged sword, as investors may have high expectations for the size of such deals. The decline in Boeing stock suggests that the company's performance is closely tied to its ability to secure large orders, which could impact its competitive position in the market.