时期
买入价
卖出价
收盘价
Dec-14
$68.75
$69.25
$69.00
Jan-15
$68.25
$68.40
$68.33
Q115
$67.50
$67.97
$67.74
Q215
$65.25
$65.75
$65.50
Q315
$64.50
$64.88
Q415
$64.00
$65.00
Cal15
$65.31
$66.00
$65.66
Cal16
$63.75
$64.75
$64.25