铝持仓分布	增减
CASH /21MAR		142339	-6139
22MAR/18APR		105381	-711
19APR/16MAY		131116	55
17MAY/3 MTH		20119	5732
REST OF MAY		5136	-1153
01JUN/63MTH		354056	2178
TOTAL		758147	-38