Easter is a big deal over here... The Oslo exchange closed early last Wednesday and remained closed until today.
FYI. May is also a big month for bank holidays. The exchange will also be closed on May 1st , 9th, 17th and 20th.
My brother says I live in a nation of part time workers. ;-)
http://www.oslobors.no/ob_eng/Oslo-Boers/About-us/Opening-hours