物价
ATA 1.77 0 0% -31.40%
Chegg 75.02 2.21 3.04% 66.79%
Houghton Mifflin Harcourt 1.60 0.11 7.38% -70.48%
Scholastic 27.79 0.56 2.06% -16.09%

物价
NASDAQ 10617 69.69 0.66% 28.57%
Russell 2000 1422 23.76 1.70% -8.91%