兰格钢铁

时期

买入价

卖出价

收盘价

Mar-15

$57.00

$58.00

$57.50

Apr-15

$54.50

$54.75

$54.63

Q215

$53.50

$53.75

$53.63

Q315

$52.25

$52.50

$52.38

Q415

$51.25

$51.75

$51.50

Q116

$50.00

$50.75

$50.38

Cal16

$49.75

$50.25

$50.00

Cal17

$50.25

$50.75

$50.50