Why did I get fills on a holiday?

Last Saturday I placed orders for Tuesday. They got filled on Monday (a holiday) with the closing prices of last Friday. Can someone please fix this? Thanks.

I do not trade stocks and did not examine your monday fills, but were any of these foreign stocks or US stocks on foreign markets or US stocks done electronically (this, non MLK, Jr)? I believe some equities trade electronically even outside business hours.

Otherwise, MK needs to do some checking…

C2 had an error with the tape run on the holiday…

its an easy fix, just click on the fix "?" button and fill it out, it will fixed quickly!

Matt fixed it within a couple of hours for me when I did it yesterday.