Meredith Corp., whose shares set a 52-week high of $42 in late December, has seen its share price tumble more than 30% since then. Last week the stock set a new 52-week low. In mid-January, Meredith reported fiscal second-quarter profits that missed analyst expectations by 1 cent per share. Last week it said TV ad bookings for the Jan.-March quarter were off in the mid-single-digit range but forecast magazine ad pages would increase in the high-single-digit range. In trading Friday, Meredith closed at $27.81, down 16.04% for the week.