时期
买入价
卖出价
收盘价
Dec-14
$69.25
$69.50
$69.38
Jan-15
$68.75
$69.00
$68.88
Q115
$68.25
$68.50
$68.38
Q215
$65.50
$66.00
$65.75
Q315
$64.75
$65.13
Q415
Cal15
$65.81
$66.15
$65.98
Cal16
$64.00
$65.25
$64.63