Announcement? Weekend worries.As to judomacco's post about the announcement, I have found that bad news is usually dumped on a late Friday pm - and especially going into a long holiday weekend such as the upcoming Canadien one. Good news in more frequently released early in the week.
This is why there usually is a lot of selling on Friday afternoons and buying a on Monday am - some don"t want to get caught holding the bag if something bad happens.