Dec 23 (Reuters) - The S&P 500 opened at another record high
on Monday as President Donald Trump said an initial U.S.-China
trade pact would be signed "very shortly", while Boeing rose 3%
after it fired Chief Executive Dennis Muilenburg.
The Dow Jones Industrial Average .DJI rose 36.69 points,
or 0.13%, at the open to 28,491.78. The S&P 500 .SPX opened
higher by 4.83 points, or 0.15%, at 3,226.05, while the Nasdaq
Composite .IXIC gained 25.24 points, or 0.28%, to 8,950.20 at
the opening bell.