时期
买入价
卖出价
收盘价
Mar-15
$59.50
$60.00
$59.75
Apr-15
$58.25
$58.50
$58.38
Q215
$57.75
$58.00
$57.88
Q315
$56.75
$57.25
$57.00
Q415
$56.50
$56.63
Q116
$55.75
$56.25
$56.00
Cal16
$55.25
$55.50
Cal17