From an investment company point of view, To minimize capital...

From an investment company point of view,

To minimize capital lost, we would close out some of the trade positions equivalent to our capital invested, prior to a huge announcement like this one, especially given that the date and time is fixed.

Always remember that prior to a release of market sensitive news, some of the value of the "positive news" have already been factored into the share price. Therefore even if the actual news is released, incremental value is minimal.

If the news is good, we continue to let the profit run. If news are bad, we only stand to lose our profit.

2 rules of investing.

#1 Capital perservation
#2 Follow rule #1

Without capital, you wouldn't be able to make your next trade.

Take it easy mate.