时期
买入价
卖出价
收盘价
Feb-15
$62.61
Mar-15
$62.25
$62.75
$62.50
Q215
$61.25
$61.75
$61.50
Q315
$59.50
$60.00
$59.75
Q415
$58.75
$59.25
$59.00
Q116
$58.00
$58.50
$58.25
Cal16
$57.50
$57.75
Cal17
$58.88
$59.38
$59.13