When I view the rankings for Stack Exchange, I am at the top for whatever is the current period (week, month, etc), which is obviously incorrect as I am not Jon Skeet :) However, if I view the immediately previous period I am not shown and all is right. Is this a bug? Or have I misunderstood the intended behaviour?
See for example the ordering by month rank for the current incomplete month August 2017:
versus the previous month July 2017:
See also the ordering by rank change for the current incomplete week Aug 6 - Aug 6, 2017:
versus the previous week Jul 30 - Aug 5, 2017: