Good question. My guess is that $.44 or flat to expectations = zero S/P movement, either up or down... unless forward guidance is changed.
Look at today's miss on August SSS, a very minor variance and yet WAG still made their quarterly sales expectation. So the S/P isn't getting very affected despite the miss.
Where the issue will arise, since WAG did make their expected sales for the quarter and year is if they still miss on earnings. What that will signal is a missfiring biz plan. The amount of hit or spike will be proportional to how big the variance is, if there is one.
Regular readers of this board already know my predictions for Sept. 28th.