Bush died at 94
George H. W. Bush died on Saturday at 94.
US markets traditionally close following the death of a President. The most-recent one was Gerald Ford in 2007.
Trump will designate Wednesday, Dec 5 as a national day of mourning and US stock and options markets will close. SIFMA hasn't confirmed whether bond markets will be closed.
The US closure will curb trading in a day that features economic data including the ADP employment report, Q3 productivity, the Markit services PMI, the ISM non-manufacturing index and the Fed's Beige Book.
I'm not sure how the unscheduled closure will affect things like options expirations and other derivatives. Companies have scheduled earnings reports as well.