时期
买入价
卖出价
收盘价
Feb-15
$62.50
$62.60
$62.55
Mar-15
$63.25
$63.50
$63.38
Q215
$62.00
$62.25
Q315
$60.00
$60.50
$60.25
Q415
$59.00
$59.75
$59.38
Q116
$58.50
$58.75
Cal16
$57.63
$58.13
$57.88
Cal17
$59.50