时期
买入价
卖出价
收盘价
Mar-15
$60.25
$60.75
$60.50
Apr-15
$59.25
$59.75
$59.50
Q215
$58.33
$58.75
$58.54
Q315
$57.50
$57.75
$57.63
Q415
$57.00
$57.25
$57.13
Q116
$56.00
$56.50
$56.25
Cal16
$55.50
$55.75
Cal17