The SEC has an 11th March deadline to make a decision regarding the proposed rule change that would clear the way for the ETF, which would be the first of its kind. Yet because the 11th falls on a Saturday, that decision will come before that date – potentially before Friday, the source said.
http://www.coindesk.com/sec-decide-bitcoin-etf-fate-friday/
I'm not sure what Market you are talking about , most Markets are open Monday-Friday
(NYSE for example 930-1600 which means they didn't even open for the day yet.)